A Manager of a Local Store Wants to Estimate the Mean

question 112

Multiple Choice

A manager of a local store wants to estimate the mean amount spent per shopping visit by customers. Summary statistics from a sample taken reveal the following: Determine a 95% confidence interval for the mean amount spent.

• A) [45.21, 53.56]
• B) [40.36, 58.35]
• C) [30.54, 68.14]
• D) [45.13, 53.56]
• E) [29.34, 69.34]

---

Definitions:

Simplest Test

Often considered to be the one-sample t-test, it assesses whether the mean of a single sample differs from a known value.

17th Century

A historical period extending from the year 1601 to 1700, notable for significant developments in science, art, and politics.

Population

The entire group of individuals or instances about which scientists are interested and wish to draw conclusions in statistical studies.

Sample Group

A subset of a population selected for participation in a study, representing the larger population from which it was drawn.