The file FastFood contains the amount that a sample of fifteen customers spent for lunch ($) at a fast- food restaurant:
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 15, do you need to be concerned about the shape of the population distribution when conducting the t test in (a)? Explain.

  • CreatedJuly 16, 2015
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