refer to the accompanying data set of mean​ drive-through service times at dinner in seconds at two fast food restaurants. construct a ​% confidence interval estimate of the mean​ drive-through service time for restaurant x at​ dinner; then do the same for restaurant y. compare the results.

Answers

Answer 1

Step-by-step explanation:

Assuming the data is as shown, restaurant X has a mean service time of 180.56, with a standard deviation of 62.6.

The standard error is SE = s/√n = 62.6/√50 = 8.85.

At 95% confidence, the critical value is z = 1.960.

Therefore, the confidence interval is:

180.56 ± 1.960 × 8.85

180.56 ± 17.35

(163, 198)

Restaurant Y has a mean service time of 152.96, with a standard deviation of 49.2.

The standard error is SE = s/√n = 49.2/√50 = 6.96.

At 95% confidence, the critical value is z = 1.960.

Therefore, the confidence interval is:

152.96 ± 1.960 × 6.96

152.96 ± 13.64

(139, 167)


Related Questions

describe one way an invasive species, such as the zebra mussel, can decrease the carrying capacity for a native species in an ecosystem.

Answers

The zebra mussel is an invasive species that decrease the carrying capacity of native species by competing for limited food resources. Invasive species are harmful to the homeostasis of an ecosystem.

The carrying capacity refers to the maximum population size of a species sustained by specific environmental conditions.

The factors that affect the carrying capacity include the availability of both biotic (e.g., food, presence of invasive species, etc) and abiotic (e.g., water, habitat) resources.

For example, Zebra mussels, and Quagga mussels are invasive species that can decrease the carrying capacity of native mussels by taking away limited food and attaching themselves to the native mussels.

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What do the descriptive details in this passage convey? Select three options. sensory information related to sound sensory information related to smell suspense and excitement a visual depiction of a character a visual depiction of an object

Answers

Answer:

A,C,E

Explanation:

The descriptive details in the passage convey that sensory information related to sound, suspense & excitement a visual and a visual depiction of an object

What is descriptive details?

In this context, a descriptive details means some type of details that allow sensory recreations, experiences, objects, imaginings etc

Hence, the descriptive details in the passage convey that sensory information related to sound, suspense & excitement a visual and a visual depiction of an object.

Therefore, the Option A, C and E is correct.

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Which action by one of the students is most disruptive to the discussion? One listener interrupts the speaker by inserting an opinion. One student laughs at the opinion presented by another student. One listener maintains eye contact with the speaker. The teacher calls on the next student to express a viewpoint.

Answers

Answer:A

Explanation:One listener interrupts the speaker by inserting an opinion.

One of the main things that prevents people from listening is noise, which is anything that makes it difficult to pay attention to and comprehend what is being spoken. Thus, option A is correct.

What are the interrupts affecting the listener by opinion?

The act of interjecting communicates to the speaker your disinterest in what they have to say. You don't have time to actually listen to them or believe your voice is more essential.

It might even give the impression that you weren't paying attention at all and were simply waiting for an opportunity to speak.

Frequent interruptions can also double error rates, increase rates of tiredness, and stress-related illnesses. The next time you are tempted to interrupt a coworker who is hard at work with a brief comment, consider the effect you will have.

Therefore, One listener interrupts the speaker by inserting an opinion.

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which employees typically work in an office environment within schools? check all that apply.

Answers

The important ones. Yes we are good

Answer: B,E,F

hope this helps

Good luck!

A bart chart shows election years on the x axis and percentage of voters on the y axis. 2008: Democrats, 66; Republicans, 32. 2012: Democrats, 60; Republicans, 38. Look at the bar graph. What is the best conclusion that someone can draw about the youth vote in recent presidential elections? The same number of youth voted in 2008 as in 2012. Most young voters favor Republican candidates. Most young voters favor Democratic candidates. Young voters represent most of the electorate.

Answers

Answer:

Option C- Most young voters favor Democratic candidates.

Explanation:

Edge 2021

Most young voters favor Democratic candidates. The correct option is C.

What is a bar graph?

The visual display of data (often grouped) in the shape of vertical or horizontal rectangular bars, with the length of the bars corresponding to the measure of the data, is called a bar graph.

Bar charts are another name for them. One tool used in statistics for processing data is the bar graph.

When displaying the distribution of data points or comparing metric values across several subgroups of your data, a bar chart is employed.

A bar graph allows us to determine which groupings are most numerous or prevalent as well as how different groups stack up against one another.

The most accurate assessment of the youth vote in the most recent presidential elections is that majority of them support Democratic candidates.

Thus, the correct option is C.

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what is the result of dividing 2x3+6x2+6x+2 by x+1 ?

Answers

Answer:

b

Explanation:

hennrhnthnth tj t tjn4n4un4un

Choose the best Spanish word to complete the sentence. Paulo y Daniel _________ en New York. anduve anduvieron anduviste andaba

Answers

Answer:

anduvieron

Explanation:

The best Spanish word to complete the sentence. Paulo y Daniel anduvieron en New York.

What is sentence?

Sentence is defined as a word, clause, or phrase, or a collection of clauses or phrases, that in writing typically starts with a capital letter and ends with the proper end punctuation, and in speaking is distinguished by distinctive patterns of stress, pitch, and pauses. It expresses an assertion, a question, a command, a wish, an exclamation, or the performance of an action.

Spanish refers to the Spanish embassy and implies a connection to Spain, its people, language, or culture. Spanish is the official language of cities of spin. The peoples of other countries also love to learn Spanish to earn growth in there carrier.

Thus, the best Spanish word to complete the sentence. Paulo y Daniel anduvieron en New York.  

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according to maslow, employment is an example of which type of need?

Answers

Employment can be considered as example of safety and security, which are types of human needs according to Maslow.

Maslow theory is about human Physiological needs. Physiological needs  can be regarded as biological requirements that are very Essential for human survival.

These could be food, drink, shelter as well as  clothing.

However, there are higher needs that needed to be met for human survive in term of safety and security, and employment is part of it.

Employment as a needs helps man to cater for other needs such as shelter, foods, as easy living.

Therefore, Maslow let us know that man Physiological needs are very essential for his security.

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which graph represents y=⌈x⌉over the domain 3≤x≤6 ?

Answers

Answer:

i cant see the graphs

Explanation:

a model of memory processing ranging from shallow to deeper processing is called

Answers

A model of memory processing ranging from shallow to deeper processing is called: levels of processing model.

What is a memory?

A memory can be defined as a terminology that is used to describe the available space on an electronic device that is typically used for the storage of data or any computer related information such as:

ImagesVideosTextsMusicCodesFolders

In computer science, the levels of processing model refers to a model of memory processing ranging from shallow to deeper processing and it was developed by Fergus Craik and Robert Lockhart in 1972.

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Study the image. Which statement best describes the rock? The rock has fine grains. The grains of the rock are sharp or jagged. The rock is banded. The bands of the rock run from the top to the bottom.

Answers

Fine grain are refered to as rocks or grains that has low graininess so that some have enlargement without undue coarseness present. The statement that best describes the rock is that the rock has fine grains.

A rock is commonly referred to as any naturally solid mass, aggregate of minerals or mineraloid matter.

Rocks does have chemical composition and are usually grouped into three main groups: igneous rocks, metamorphic rocks and sedimentary rocks

Conclusively, The fine-grained texture shows that the fast cooling lava did not have time to grow large crystals.

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Answer:

A

Explanation:

edge

Using the drop-down menus, choose the best words to answer the questions. Which synonym changes "expensive" to a word with a positive connotation in the sentence "He lived a very expensive lifestyle"? Which synonym changes "ordinary" to a word with a negative connotation in the sentence "She had a very ordinary day at school"? Which synonym changes "wild" to a word with a neutral connotation in the sentence "The horse was very wild"?

Answers

Answer:

1 Lavish

2 dull

3 untamed

Explanation:

Just did this question.

The correct words or synonyms are

LuxuriousMundane and Untamed.

The explanation of the above synonyms

Which synonym changes "expensive" to a word with a positive connotation in the sentence "He lived a very expensive lifestyle"?

- Luxurious

Which synonym changes "ordinary" to a word with a negative connotation in the sentence "She had a very ordinary day at school"?

- Mundane

Which synonym changes "wild" to a word with a neutral connotation in the sentence "The horse was very wild"?

- Untamed

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What are the three fundamental principals of mnemonics?

Answers

The three fundamental principles underlying the use of mnemonics are imagination, association, and location.

What is mnemonics?

Mnemonics are memory-enhancing techniques. They are frequently taught in schools to aid in learning and memory.

Chunking or grouping information is a mnemonic technique that simplifies information into groupings, phrases, words, or figures that are simpler to remember.

Chunking is used to arrange things like credit cards, phone numbers, and Social Security numbers. Interesting studies have been done on persons with moderate Alzheimer's disease using a variety of mnemonic techniques, including chunking.

According to the findings of these investigations, chunking can benefit in the early stages of dementia by enhancing verbal working memory.

Therefore, The three fundamental principles underlying the use of mnemonics are imagination, association, and location.

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What is the effect of the figurative language used in this excerpt? Choose three answers. It shows Hamlet’s willpower. It shows Hamlet’s indecision. It shows Hamlet’s determination. It shows Hamlet’s confusion. It shows Hamlet’s idleness.

Answers

The effect of the figurative language that is used in the excerpt is to

show Hamlet’s indecision. shows Hamlet’s confusion. shows Hamlet’s idleness.What is an excerpt?

An excerpt is an extra form film or a piece of music. It s a short form of text and here the excerpt refers to the figurative language of hamlet who is expressing himself and does make the use of certain words and adds creativity to the spoken language.

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Answer:

Person above is correct 2,4, and 5

Explanation:

why does the reactivity of metals increase from right to left on the periodic table?

Answers

Answer:

This is because it has one electron

Answer:

here you are my G;

Explanation:

1. Metals on the right have more protons, causing valence electrons to be held more strongly.

2. by gaining electrons

3. They are very nonreactive.

4. Cs and Br

5. Rb loses an electron.

Fill in the blank with the correct form of gustar. A ella le _____ los deportes. gusta gustan

Answers

Answer:

A ella le gustan los deportes.

Explanation:

Answer:

Explanation:

gustan edge 2022

in order for a survey to accurately generalize the entire population, the survey must

Answers

In order for a survey to accurately generalize the entire population, the survey MUST select participants in a RANDOM mode, and sampled individuals must have an EQUAL LIKELIHOOD of being chosen.

Random sampling refers to the sampling methodology by which each item or element of the target population exhibits the same probability of being included in the sample.

Random sampling represents the most reliable methodology of probability sampling.

Because samples are selected in a random mode, any research using a random sampling approach has high internal and external validity.

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write two to three sentences explaining the pun on the name ernest in the passage and how the pun connects to a serious issue or question.

Answers

Answer:

Throughout the play, Wilde uses puns to connect the name Ernest to the word earnest. When Cecily says that she has always wanted to marry someone named Ernest, she implies that she also wants someone earnest who “inspire[s] absolute confidence.” In this scene, however, Algernon is lying to her about who he is. His deception suggests that no one can ever have “absolute confidence” that others are being earnest.

Explanation:

Wilde utilizes puns throughout the play to tie the name Ernest to the term earnest.

The Importance of Being Earnest:

Ernest is a given name that is derived from the word earnest. The term earnest refers to sincerity, yet Ernest in "The Importance of Being Earnest" is anything but.

Ernest adopts many identities or occupations, but none of them are authentic since he isn't himself. Finally, he understands why it is critical to be "honest" and loyal to himself. At the end of the novel, being "earnest" and being "Ernest" have the same meaning, since the main character, Ernest, learns the significance of being true to oneself.

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What does the underlined word mean in the following sentence? La abuela se rompió un brazo. broke her arm broke her leg broke her nose broke her finger

Answers

Answer:broke her arm.

Explanation:

The meaning of the underlined word "rompió un brazo" is;

A: broke her arm.

The underlined word in the sentence is; "rompió un brazo".

Let us analyze each of the options;

Option D; Broke her finger; In spanish this is called; rompió un dedo

Option C; broke her nose; In spanish this is called; se rompió la nariz

Option B; broke her leg; In spanish, this is called; se rompió la pierna

Option A: broke her arm; In spanish, this is called; rompió un brazo"

Thus, option A is the correct answer.

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Triangle A B C is shown. The length of side A B is 3 n minus 2. The length of side B C is 2 n. The length of side A C is n 3. Triangle ABC is shown in the diagram. The lengths of the sides are in terms of the variable n, where n ≥ 4. Complete the inequality. m∠ < m∠ < m∠

Answers

Answer:

b,a,c

Explanation:

Answer:

m∠ B < m∠ A < m∠ C

which essential urban need was met by this structure

Answers

Answer:

Clean water

Explanation:

Hope this helps :}

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And have an amazing day <3

in the law of superposition which layer is the oldest brainly

Answers

law of superposition, a major principle of stratigraphy stating that within a sequence of layers of sedimentary rock, the oldest layer is (at the base) and that the layers are progressively younger with ascending order in the sequence.

What is the constant of proportionality in the proportional relationship y=45x ? 45 4 5 I don't know.

Answers

Answer:

45

Explanation:

constant proportion

y = kx

3.00 l of a gas is collected at 35.0°c and 705.0 mmhg. what is the volume at stp?

Answers

Answer:

2.47L

Explanation:

Using the combined gas law equation as follows:

P1V1/T1= P2V2/T2

Where;

P1 = initial pressure (mmHg)

P2 = final pressure (mmHg)

V1 = initial volume (L)

V2 = final volume (L)

T1 = initial temperature (K)

T2 = final temperature (K)

According to the information provided in this question;

P1 = 705mmHg

P2 = 760mmHg (STP)

V1 = 3.00L

V2 = ?

T1 = 35°C = 35 + 273 = 308K

T2 = 273K (STP)

Using P1V1/T1= P2V2/T2

705 × 3/308 = 760 × V2/273

2115/308 = 760V2/273

Cross multiply

308 × 760V2 = 2115 × 273

234,080V2 = 577,395

V2 = 577,395 ÷ 234,080

V2 = 2.47L

True or false: The bus driver is acting like a tourist. True False

Answers

Answer:

True

Explanation:

Edge 2022

you have just read "la poesía" about a poet’s first experience writing poetry. imagine you are the speaker in the poem and write a journal entry reflecting on this experience. be sure to include details about your inspiration for writing and how the experience of writing poetry affects the way you view life. write a well-organized, text-dependent response. be sure to save time to edit and review your work for complete sentences, spelling, punctuation, and appropriate language.

Answers

Answer:

idek

Explanation:

lol

“la poesía” Meaning of that word  is  “the poetry

What is poetry?

Poetry, also called verse, is a form of literary study that uses aesthetic and often rhythmic qualities of language − such as phonaesthetic sound symbolization, and meter − to evoke meanings in indefinite quantity to, or in place of, a prosaic apparent.

First experience writing poetry. Imagine you are the speaker in the poem and write a journal entry reflecting on this experience. The poetic experience is the proper object of the philosophy of poetry; furthermore, realizing the social and moral value of poetry is also the proper object of the. Philosophy of poetry. The characteristics of good and bad poetry and things to keep in mind when writing your own. It Focuses on the Main Idea.

Therefore, experience writing poetry. Imagine you are the speaker in the poem.

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in 2013 the number of students in a small school is 284

Answers

Answer:            ok

Explanation:

what is the energy conversion during cellular respiration?

Answers

it’s called ATP

ATP basically means energy

Which of the following is the best definition of deposition in geology?(1 point) the creation of volcanic rock when liquid magma hits the ocean and cools the creation of volcanic rock when liquid magma hits the ocean and cools the creation of any metamorphic rock the creation of any metamorphic rock laying down of sediment in layers carried by wind, water or ice laying down of sediment in layers carried by wind, water or ice the mixing of many layers of sediment by wind, water or ice

Answers

Laying down of sediment in layers carried by wind, water or ice is the best definition of deposition in geology. Thus option C is correct.

What is geology?

The main branch of Earth science, geology, studies how the earth was created, as well as its makeup and the processes that impact it. Natural humanity's field of geology is interested with Earth and other celestial objects, the structures or rocks that make them up, and also the mechanisms that cause these shifts over time.

A deposition is the act of depositing sediment that has been carried by the air, water, seas, or ice. Granules, sand, clay, and salts that have been dissolved in the water can all be used to convey sediment.

Salts could later be accumulated through evaporation or organic action. Traditionally, sedimentary rocks are found in strata known as strata. Younger layers sit on top of older levels in unbroken strata. Therefore, option C is the correct option.

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The question is incomplete, the complete question will be :

Which of the following is the best definition of deposition in geology?(1 point)

A:the creation of volcanic rock when liquid magma hits the ocean and cools

B:the mixing of many layers of sediment by wind, water or ice

C:laying down of sediment in layers carried by wind, water or ice

D:the creation of any metamorphic rock

which statement best explains the difference between polar and nonpolar covalent bonds?

Answers

Answer:

Nonpolar covalent bonds involve two atoms that have equal electonegativity whereas polar covalent bonds involve two atoms that are unequal in their electronegativity.

Explanation:

Polar covalent bonding is a type of chemical bond where a pair of electrons is unequally shared between two atoms.If the electronegativity of two atoms is basically the same, a nonpolar covalent bond will form, and if the electronegativity is slightly different, a polar covalent bond will form.

A covalent bond is a force that joins two atoms of non-metallic elements to form a molecule. Atoms share pairs of electrons from their most superficial layer (called the valence layer) to achieve the stability of the molecule that has been formed with the bond and thus comply with the octet rule.

On the other side, electronegativity refers to the tendency of the atom of a given element to attract electrons.

So, the covalent bond between two atoms can be polar or nonpolar.  

Polarity depends on the difference in electronegativity of the joining elements. The greater the electronegativity difference, the greater the polar character of the bond. The most electronegative element will be the one that most strongly attracts the shared electrons, then a negative partial charge will be generated on said element, while a positive partial charge will be generated on the other element (less electronegative).

Finally, nonpolar covalent bonding occurs when pairs of electrons are shared between atoms that have the same or very similar electronegativity, favoring an equitable distribution of electrons.

In summary, the correct answer is: Nonpolar covalent bonds involve two atoms that have equal electonegativity whereas polar covalent bonds involve two atoms that are unequal in their electronegativity.

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If y varies directly with x which equation describes x = 72 and y = 36? What is the difference between Britain and British ? The mean of following:pay some money for an event in order to advertise: HELP OR ILL HAVE TO RESTART EVERYTHING can any body help me this Erin ran 5 km in 25 minutes. What is her speed in km per minute? (Answer as a decimal) Distance between gas molecules in the case of:-Increase in temperature -Decrease in temperature-Increase in volume-Decrease in volume-Increase in pressure-Decrease in pressure What message does the poet hope to convey in the poem? A.A persons memories become more significant as one grows older.B.Moving to a new place offers a person important and unique opportunities. C.The best way to remember a person is to visit the place where that person was born. D.A persons sense of identity is often linked to a meaningful location in ones past. FUN FACTguys do you know that in this letter " e " contains L !!!!!!! Where did Suleiman go with his army? What policy was issued by the British government in an effort to avoid conflict between the American colonists and Native Americans after the French and Indian War?A:The Proclamation of 1763B:Th ownshend ActsC:The Quartering ActD:The Monroe Doctrine why is it so important to have grains in your diet? PLS HELP ASAP ILL GIVE BRAINLIEST TYSM who ruled Egypt while the Shang dynasty ruled China? Explain the various zoming laws and codes favored by progressives Advantages and Disadvantages of a public limited company (preferably 3 of each) Ipaliwanag ang dalawang responsibilidad na kakambal ng kalayaan? Brandon enters bike races 8 1/2 miles every 1/2 hour. HELPPPPPP !!!! You are creating your own real-world problem or word problem using Pythagorean Theorem. You create the problem and solve it. Use what you find to help you create your own problem. It does not have to be a really hard problem. Which type of parent function is f(x) =^3cubed xA. Square rootO B. Cube rootO C. ReciprocalD. QuadraticHelp quick!!!