In Mealanies styling salon, the time to complete a simple haircut is normally distributed with mean...

In Mealanies styling salon, the time to complete a simple haircut is normally distributed with mean of 25 minutes and a standard deviation of 4 minutes. What percent of customers require less than 32 minutes for a haircut?

Please show what formulas you use and step by step solution.

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Expert Solution

Here it is given that distribution is normal with mean=25 and standard deviation=4

So we need to find

As distribution is normal we can convert x to z

We have used below z table to find the required probability

orchestra answered 1 year ago

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