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Author Question: Suppose the monthly demand for automobile tires at a tire dealer is normally distributed with a mean ... (Read 92 times)

kellyjaisingh

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on: Jun 24, 2018
Suppose the monthly demand for automobile tires at a tire dealer is normally distributed with a mean of 250 tires and a standard deviation of 50 tires. How many tires must the store have in inventory at the beginning of each month in order to meet demand 95 percent of the time?

Question 2

In order to estimate the mean salary for a population of 500 employees, the president of a certain company selected at random a sample of 40 employees. What is the probability that the sample mean salary of the employees will be within 200 of the population mean salary?


paavo

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Reply #1 on: Jun 24, 2018
Answer to Question 1

332

Answer to Question 2

0.901


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