10.30 Raisins The numbers of raisins in each of 14 miniboxes (15 g) were counted for a generic brand and for Sunmaid brand raisins:

a. Although counts cannot have a normal distribution, do these data have approximately normal distributions? (HINT: Use a histogram or stem and leaf plot.)

b. Are you willing to assume that the underlying popu- lation variances are equal? Why?

c. Use the p-value approach to determine whether there is a significant difference in the mean numbers of raisins per minibox. What are the implications of your conclusion?

Transcribed Image Text:

Generic Brand 25 26 25 28 26 28 26 27 22 28 24 223 27 28 25 25 26 26 28 24 Sunmaid 25 29 24 24 2222 24 28 2222 222 22 28 30 27