Use the Following Information to Answer the Question

question 50

Short Answer

Use the following information to answer the question. Suppose the manager of a large appliance and electronics store wants to estimate the amount spent by customers during the holiday season. He took a random sample of customers and recorded the amount they spent. A histogram of the data shows that the data is strongly left- skewed. The figures below show the confidence intervals for the mean amount spent using (A)raw (untransformed)data, and (B)log- transformed data, which showed a more normally distributed data set.

-Calculate the width of both intervals (note that you will need to convert the
log- transformed interval back into dollars)and state which interval is narrower?

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Definitions:

Physical Symptoms

Observable or felt changes in the body that often indicate disease, discomfort, or the effects of stress.

Agreeableness

A personality trait characterized by compassion, cooperativeness, and a desire for social harmony.

Antagonism

Extreme low agreeableness.

Disinhibition

Extreme low conscientiousness.