The marketing director for an ice cream company investigated whether there was a difference in preference for two new ice cream flavors—cotton candy and mango. Each participant from a large group of people was randomly assigned to taste one of the two flavors. After tasting, each person rated the flavor on a numerical scale from 1
1
to 5
5
, where 1
1
represented strongly dislike and 5
5
represented strongly like. A two-sample t
t
-interval for a difference between means (cotton candy minus mango) was constructed. Based on the interval, there was convincing statistical evidence of a difference in population mean flavor ratings, with mango having the greater sample mean rating. Which of the following could be the constructed interval?
Answers
The constructed interval for the rating of the ice cream mango and cotton candy is; C: (-1.4, 2.6).
What is the t-interval?When the sample size is small and the population standard deviation is unknown, then we will have to say that is when the t-interval is very useful.
Now, the z-interval for calculating confidence intervals becomes less reliable when the sample size is less than 30 i.e very small.
Now, since Mango the greater sample mean rating, and since each person rated the flavor on a numerical scale from 1 to 5, then we can say that the correct option is C; (-1.4, 2.6).
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Related Questions
How was the solution Terry and Chris developed a win-win one?
Answers
The solution developed was that terry can do cleaning and Chris can do food shopping as a solution to completing the jobs that they both enjoy.
What is a win-win situation?This refers to a situation where everyone party involves is certain to do well or be successful whatever the case is.
Here, it is shown that Terry can do cleaning and Chris can do food shopping as a solution to completing the jobs that they both enjoy.
Therefore, that resulted in a win-win situation for both Terry and Chris because all parties in disagreement were pleased with the outcome and were able to complete their tasks more quickly.
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What does standard deviation mean in psychology.
Answers
Answer:
A measure of the variability that indicates the average difference between the scores and their mean.
Explanation:
Leaders who can motivate people usually have teams with
O positive work attitudes
O a fear of change
O high absenteeism
O no need for a sense of accomplishment
♡
Answers
Leaders who can motivate people usually have teams with positive work attitudes. These attitudes are fundamental for generating confidence.
What is a leader?A leader is a skilled person who generally exhibits a positive attitude toward facing challenges and problems.
The leaders can generate confidence between the members of a team through these positive attitudes.
An excellent leader should think about the team instead of individual non-altruistic objectives.
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Leaders who can motivate people usually have teams with positive work attitudes and mindset in executing tasks.
Who is a Leader?This is defined as an individual who is in charge and convinces people to follow him/her.
Leaders who can motivate people are referred to as the good ones and usually have teams with positive work attitudes.
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Which of the below is an output strategy of dealing with global warming?
A. improving energy efficiency
B. reducing poverty
C. limiting urban sprawl
D. carbon capture and storage technology
E. reductions in fossil fuel use
Answers
Answer: E
Explanation:
Electricity can be produced from a variety of fuels and methods.
(a) Although producing electricity from burning fossil fuels, such as in coal-fired power plants, is common around the world, some scientists and economists argue that where the geography is appropriate, hydroelectric power is a better method for generating electricity.
(i) Describe one advantage of using hydroelectric power plants over using coal-fired power plants.
(ii) Describe one potential disadvantage of hydroelectric power plants.
Answers
Explanation:
i) as we know fossil fuels are the main cause of pollution in most parts of the world. So hydroelectric power plant are useful as they do not cause pollution and they are environment friendly because it is produced by water.
ii) Dams can help in i) Increase Tourism
ii) It can trap sediments
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James is drawing a model that illustrates how magnetic reversal supports the theory of seafloor spreading and plate tectonics. How should James label the parts of the model indicated by the arrows labeled A, B, C, and D?James is drawing a model that illustrates how magnetic reversal supports the theory of seafloor spreading and plate tectonics. How should James label the parts of the model indicated by the arrows labeled A, B, C, and D?
A: "A: N, B: N, C: S, D: N"
B:"A: N, B: N, C: S, D: S"
C: "A: S, B: N, C: S, D: S"
D:"A: S, B: S, C: N, D: N"
Answers
The movement of the seafloor and the tectonic plates has been responsible for the movement of the continents. The arrows in the model can be represented as "A: S, B: S, C: N, D: N"
What are tectonic plates?The big pieces of the earth's lithosphere that move is termed the tectonic plates. The movement of the plates has been given as the theory for the formation of the continents, as well as the cause of various disasters, including earthquakes and volcanos.
The model representing the movement of the plates from the center can be given in the N and the S direction. Thus, the representation of the arrows in the model will be: "A: S, B: S, C: N, D: N"
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Given its narrow streets (shown in the image above), which of the following urban problems is Corfu, Greece least likely to have?
A. water pollution
B. heat island effect
C. increased surface water runoff
D. air pollution
E. solid waste
Answers
Which development would most likely cause the supply of a product to
increase?
A. Government regulations increase the cost of making the product.
B. New technology allows the product to be made more quickly.
C. Companies expect the price of the product to fall significantly.
OD. Fewer workers receive the education needed to create the product.
SUBMIT
Answers
Answer:
B: New technology allows the product to be made quicker
If a product can be made quicker, you can make more products in less time, resulting in more supply/stock.
New technology allows the product to be made more quickly. The correct option is B.
What is technology?The tools, methods, and systems used to create, process, store, and exchange information, or to perform tasks that make life easier and more efficient, are referred to as technology.
Because it improves the efficiency of the manufacturing process, the development of new technology that allows a product to be manufactured more quickly can increase the supply of that product.
Lowering production costs can make it more profitable for producers to supply more product to the market.
As a result, they may increase production to meet rising demand or to take advantage of lower production costs, resulting in an increase in product supply.
Thus, the correct option is B.
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Assume the economy is currently in long-run equilibrium. An increase in the money supply will affect unemployment in the short run and in the long run in which of the following ways?
Answers
A money supply go up and be inflationary in nature if the unemployment rate is below the natural rate and thus there will be high rate of unemployment.
What does it implies when the economy is in long run equilibrium?An economy that is to be in long-run equilibrium will have the real unemployment rate to be equal to that of natural rate of unemployment.
Note that a boast in the money supply will influence unemployment based on the fact that unemployment rate is bigger than the natural rate of unemployment, and thus the rate of inflation is said to be going done.
When the level of output is higher than employment output, an unemployment rate tends to increase and thus pressure is placed on increased wages and prices.
Conclusively, Note that Lower unemployment rate will lead to lower presence of workers in the companies .
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What will be next in sequence
Answers
Answer:
application letter for the post of accountant NIC asia
169.
a.
b.
C.
d.
e.
and
are multi-state nations.
and
were multi-state nations in the twentieth century but no longer are.
China, Germany; Ireland, Vietnam
China, Ireland; Germany, Vietnam
China, Vietnam; Germany, Ireland
China, Denmark; Germany, Ireland
Denmark, Ireland; Germany, Vietnam
Answers
Answer:
China, Ireland; Germany, Vietnam
Explanation:
A multi-state nation occurs when a nation stretched across international borders, therefore across states
China - currently a mutli-state nation:
The Nationalist party in China fought against communist forces before and after WWII but by 1949 the Communist under Mao Zedong won. The Nationalists then fled to Taiwan and claimed they were the legitimate government of China. Today, 95% of people who lin in Taiwan are Han Chinese. Therefore, the people or nation (the Chinese) are split between China and Taiwan.
Ireland - currently a mutli-state nation:
The Irish War of Indepence took place from 1919 to 1921 and resulted in Ireland’s independence from the U.K along with Ireland becoming split. In 1921 Northern Ireland was created when Ireland was partitioned by the Government of Ireland act of 1920. The majority of Northern Ireland’s population were unionists who wanted to remain with the U.K. and this act created a devolved government for the 6 northeastern counties. Today, the Irish people are divided between the Republic of Ireland and Northern Ireland which is still part of the U.K.
Germany - was a mutli-state nation in the past:
After WWII the eastern part of Germany including the 5 landers of Brandenburg, Mecklenburg-Vorpommern, Saxony, Saxony-Anhalt, and Thuringia was occupied by Soviet forces. In 1949, Germany formally split into 2 independent states: The Federal Republic of Germany (West Germany - democracy) and The German Democratic Republic (East Germany - communist). In 1961 the GDR/East Germany built the Berlin wall overnight on August 13, creating a physical border between East and West Germany. In 1989 communism fell in East Germany and the Berlin Wall was torn down the same year. The country was reunified in 1990.
Vietnam - was a mutli-state nation in the past:
The First Indochina War
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The process of accepting jesus as your savior has three steps. what are they?
Answers
Answer:
Salvation doesn't come from our good deeds or by doing anything special, it's a free gift from God just because He loves us so much. We need to turn away from our sins, believe that Jesus is God's Son and our Savior, and submit to Him as Lord of our lives. By doing so, we receive salvation and eternal life.
Explanation:
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