Test the claim that the shirt sleeves are at least 33 inches.
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The buyer of shirts for a department store wants to test whether shirts with sleeve labels of "33 inches" are at least that specification on average. A random sample of n = 100 from 10,000 incoming shirts is to be taken. The sample shows a mean length of 34 inches, with a standard deviation of 2 inches. Find the P value.
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Solution Summary
This solution shows how to calculate the z statistic and determine its related-value. An interpretation of the results is included.
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n = 100, x-bar = 34, s = 2, mu = 33; Let alpha = 0.05
z = ...
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