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The heat evolved in calories per gram of a cement mixture is approximately normally distributed. The...

The heat evolved in calories per gram of a cement mixture is approximately normally distributed. The mean is thought to be 100, and the standard deviation is 3.

(a) Test H0: μ = 100 versus H1: μ ≠ 100 with a sample of n = 9 specimens and α=0.05.

(b) In another study, the acceptance region is found to be 98.5≤X≤101.5. If n=9, find the value of α used in this study.

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orchestra answered 2 years ago
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