Help with 8-10 please A popular chocolate chip cookie comes in two varieties, re
ID: 3135483 • Letter: H
Question
Help with 8-10 please A popular chocolate chip cookie comes in two varieties, regular and reduced fat. A competitor claims that the reduced fat cookie is a regular cookie with fewer chocolate chips. The competitor randomly selects 15 cookies each from one bag of regular cookies and one bag of reduced-fat cookies. Write a statement comparing the spreads of the data distributions for the different cookie types. How do the measures of center compare for the two types of cookies? Do you agree with the competitor's claim that the reduced fat cookie is simply a regular cookie with fewer chocolate chips? Use the dot plot to justify your answer.
Explanation / Answer
8. For regular cookies, we can see that the minimum number of chocolate chip is 16 and the points are concentrated in the center (16 to 22) and is right skewed towards 26. For reduced fat cookie, the distribution is symmetrical between (10-20).
9. The measure of center for the two cookies can be compared using the two-sample t-test.
10. Yes. As the dot plot shows more number of chocolate chip for regular cookies, the competitor's claim holds good.
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