The ages of customers at a store are normally distributed with a mean of 45 years and a standard deviation of 13.8 years. (a) What is

Question

The ages of customers at a store are normally distributed with a mean of 45 years and a standard deviation of 13.8 years.
(a) What is the z-score for a customer that just turned 25 years old? Round to the nearest hundredth.
(b) Give an example of a customer age with a corresponding z-score greater than 2. Justify your answer.
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Nick 4 years 2021-08-31T13:04:40+00:00 1 Answers 11 views 0

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  1. Euphemia
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    2021-08-31T13:05:40+00:00
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    The Standard Normal distribution follows a normal distribution and has mean 0 and … z = s. Example. Find the z-score corresponding to a raw score of 132 from a … be less than a given value, greater than a given value, or in between two values. … P(z < 2.37). Solution. We use the table.

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