SOLUTION: The manager of a retails store is concerned that his suppliers have been giving him laptop computers with lower than average quality. His research shows that replacement times for

Question 1182713: The manager of a retails store is concerned that his suppliers have been giving him laptop computers with lower than average quality.
His research shows that replacement times for the model laptop of concern are normally distributed with a mean of 3.2 years and a standard deviation of 0.5 years.
He then randomly selects records on 13 laptops sold in the past.
Round all answers to 4 decimal places.
b. What is the distribution of x?
x~N(3.2,________)
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
The distribution of x~N(3.2, 0.25). Use the variance for the second number, which is the sd^2.
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