# The file FastFood contains the amount that a sample of nine customers spent for lunch ($) at a fast-food restaurant:

## Question:

4.20 5.03 5.86 6.45 7.38 7.54 8.46 8.47 9.87

a. At the 0.05 level of significance, is there evidence that the mean amount spent for lunch is different from $6.50?

b. Determine the p-value in (a) and interpret its meaning.

c. What assumption must you make about the population distribution in order to conduct the t test in (a) and (b)?

d. Because the sample size is 9, do you need to be concerned about the shape of the population distribution when conducting the t test in (a)? Explain. Distribution

The word "distribution" has several meanings in the financial world, most of them pertaining to the payment of assets from a fund, account, or individual security to an investor or beneficiary. Retirement account distributions are among the most...

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**Related Book For**

## Basic Business Statistics Concepts And Applications

**ISBN:** 9780132168380

12th Edition

**Authors:** Mark L. Berenson, David M. Levine, Timothy C. Krehbiel

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