A marketing group is trying to improve sales for a clothing retail store, but first they are trying to determine the age demographics of customers based on store membership profiles that state the date of birth on it. The age of customers/members is normally distributed with a mean of 26.7 years and a standard deviation of 3.9 years. How old should the marketing group expect the 75 th percentile of the store customers to be based on their membership date of birth?

MATLAB: An Introduction with Applications
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A marketing group is trying to improve sales for a clothing retail store, but first they are trying to determine the age demographics of customers based on store membership profiles that state the date of birth on it. The age of customers/members is normally distributed with a mean of 26.7 years and a standard deviation of 3.9 years.

How old should the marketing group expect the 75 th percentile of the store customers to be based on their membership date of birth?

You will have to use the formula for z and the z distribution (normal table) to solve this problem. Be sure to include a diagram

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