Question

Chocolate chip cookies have a distribution that is approximately normal with a mean of

24.724.7

chocolate chips per cookie and a standard deviation of

2.22.2

chocolate chips per cookie. Find

Upper P 5P5

and

Upper P 95P95.

How might those values be helpful to the producer of the chocolate chip​ cookies?

Upper P 5P5equals=nothing

​(Round to one decimal place as​ needed.)

Upper P 95P95equals=nothing

​(Round to one decimal place as​ needed.)

How might those values be helpful to the producer of the chocolate chip​ cookies? Choose the correct answer below.

A.

The values can be used to identify cookies with an unusually low or high number of chocolate​ chips, so those numbers can be used to monitor the production process to ensure that the numbers of chocolate chips stays below

Upper P 5P5.

B.

The values can be used to identify cookies with an average number of chocolate​chips, so those numbers can be used to monitor the production process to ensure that the numbers of chocolate chips stays below

Upper P 5P5.

C.

The values can be used to identify cookies with an average number of chocolate​chips, so those numbers can be used to monitor the production process to ensure that the numbers of chocolate chips stays within reasonable limits.

D.

The values can be used to identify cookies with an unusually low or high number of chocolate​ chips, so those numbers can be used to monitor the production process to ensure that the numbers of chocolate chips stays within reasonable limits.

Answer 1

Solution:

We are given:

Find and

Answer: To find the , we first need to find the z score corresponding to the probability 0.05.

To find the we need to find the z-score corresponding to the probability 0.95.

How might those values be helpful to the producer of the chocolate chip cookies? Choose the correct answer below.

Answer: D.The values can be used to identify cookies with an unusually low or high number of chocolate chips, so those numbers can be used to monitor the production process to ensure that the numbers of chocolate chips stays within reasonable limits.