Mathematics, 17.02.2022 21:50 aaronr7383
A Manufacturer of scales says that when a 100-pound weight is placed on a scale the weight indicated is nomally distributed with a mean of 100-pounds and a standard deviation of 1.5 pounds. A test is done and on 10 scales and resulting in a mean of 101.5. To test this, they simulate 100 samples with a mean of 100-pounds and a standard deviation of 1.5.
A. What does each dot represent?
B. Would it be unusual to get a sample mean of 98.9? Explain.
C. Is there convincing evidence that the scales overestimate the true weight?
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