Question: Your firm has decided to interview a random sample of 10 customers in order to determine whether or not to change a consumer product. Your

Your firm has decided to interview a random sample of 10 customers in order to determine whether or not to change a consumer product. Your main competitor has already done a similar but much larger study and has concluded that exactly 86% of consumers approve of the change. Unfortunately, your firm does not have access to this information (but you may use this figure in your computations here).
a. What is the name of the probability distribution of the number of consumers who will approve of the change in your study?
b. What is the expected number of people, out of the 10 you will interview, who will approve of the change?
c. What is the standard deviation of the number of people, out of the 10 you will interview, who will approve of the change?
d. What is the expected percentage of people, out of the 10 you will interview, who will approve of the change?
e. What is the standard deviation of the percentage of people, out of the 10 you will interview, who will approve of the change?
f. What is the probability that exactly eight of your interviewed customers will approve of the change?
g. What is the probability that eight or more of your interviewed customers will approve of the change?

Step by Step Solution

3.43 Rating (159 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer
Step: 1 Unlock

a The binomial distribution b The expected number is 086 10 86 c T... View full answer

blur-text-image
Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock
Step: 3 Unlock

Document Format (1 attachment)

Word file Icon

636-M-S-C-R-V (889).docx

120 KBs Word File

Students Have Also Explored These Related Statistics Questions!