Question

The mean cost of the ingredients of a chicken permesan meal bought at the grocery store is $15. Prices from a sample of 50 restaurants for a comparable meal is shown in spreadsheet PRICES. At an alpha level of .05, can we say that eating chicken parmensan at a restaurant is cheaper? Formulate your hypotheses and solve the problem.

12.7

12.31

13.51

13.97

9.24

11.4

13.73

13.47

11.62

11.69

14.32

12.42

18.49

11.66

16.59

14.62

14.77

14.06

14.66

9.22

12.64

17.25

11.31

12.96

16.2

12.65

11.11

11.46

15.05

13.56

13.5

13.29

16.27

14.73

14.18

14.43

13.35

12.08

11.64

10.81

12.59

14.83

13.16

9.75

12.16

10.75

16.83

11.7

14.44

9.68

What is your conclusion?

a. The meal is cheaper outside

b. the meal is not cheaper outside

c. The test is inconclusive

d. not enough information to answer the question

Answer 1