SOLUTION: Smith Widget Company makes widgets for the medical industry. One particular customer requires widgets that meet FDA standards. One FDA standard requires Z-testing of at least 100
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Question 318385: Smith Widget Company makes widgets for the medical industry. One particular customer requires widgets that meet FDA standards. One FDA standard requires Z-testing of at least 100 widgets at a time at the .08 level of significance. The specific standard requires that widgets be no smaller than a certain tolerance and no larger than a certain tolerance. The critical value(s) for such a test would be: ___-0.0714_______
You can put this solution on YOUR website! One particular customer requires widgets that meet FDA standards.
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One FDA standard requires Z-testing of at least 100 widgets at a time at the .08 level of significance.
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The specific standard requires that widgets be no smaller than a certain tolerance and no larger than a certain tolerance. The critical value(s) for such a test would be: ___-0.0714_______
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Draw a standard normal curve with mean = 0 and std = 1.
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Center 92% around the mean: 46% to the left and 46% to the right.
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The critical values are +-invNorm(0.04) = +-1.7507
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Cheers,
Stan H.
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