A Major Department Store Chain Is Interested in Estimating the Mean

question 59

Multiple Choice

A major department store chain is interested in estimating the mean amount its credit card customers spent on their first visit to the chain's new store in the mall.Fifteen credit card accounts were randomly sampled and analyzed with the following results: and S = 20 .Construct a 95% confidence interval for the mean amount its credit card customers spent on their first visit to the chain's new store in the mall if the amount spent follows a normal distribution.

• A)$50.50 $9.09
• B)$50.50 $10.12
• C)$50.50 $11.00
• D)$50.50 $11.08

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Definitions:

Émile Durkheim

A French sociologist, one of the founding figures of sociology, known for his studies on social solidarity, religion, and the division of labor in society.

Stanley Cup

The championship trophy awarded annually to the National Hockey League (NHL) playoff winner.

Collective Effervescence

A concept in sociology describing the sense of energy and harmony people feel when they come together in a group for a shared purpose.

Collective Conscience

a term coined by Emile Durkheim to describe the set of shared beliefs, ideas, and moral attitudes which operate as a unifying force within society.