A fresh produce distributor has received complaints that his bananas have been arriving at the retail...

A fresh produce distributor has received complaints that his bananas have been arriving at the

retail sale store. He is suspicious of the complaint, since his average delivery time is only 4 days

(96 hours), and the bananas are fresh at the time of shipment. He decides to simulate the

appropriate conditions and make a test to see how long it takes before the bananas become

spoiled. He selects at random a sample of four crates of bananas and measures the number of

hours before spoilage occurs. The results for number of hours, x, are given as 106.102. 104, and

108.

a) Find the mean hours before spoilage.

b) Find the standard deviation for x.

c) On the basis of these measures, do you think that many of the bananas may indeed be

arriving spoiled, or are you also suspicious of the complaints? Explain.

d) Find the range of the sample of x values.

e) Why is the answer to part b is better than the answer to part d as an estimate of the

dispersion for the entire population of bananas from which the sample was taken?

Solutions

Expert Solution

orchestra answered 1 year ago

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