The customer service center in a department store has determined that the amount of time spent...
The customer service center in a department store has determined that the amount of time spent with a customer about a complaint is normally distributed with a mean of 9.3 minutes and a standard deviation of 2.5 minutes.
a. What is the z-value that corresponds to x =10 minutes.
b. What is the z-value that corresponds to x =5 minutes
c. what is the x-value that corresponds to z = 1.12? Round answer to the nearest whole number.
Homework Answers
For the given normal distribution with a mean of 9.3 minutes and a standard deviation of 2.5 minutes.
a) Z score is calculated as:
b) Z is calculated as:
c) At Z score 1.12 the X value is calculated as:
X=12 rounded to whole no.
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