A student believes that the average grade on the statistics final examination is 87. A sample...

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Answer 1

Answer #1

U=87 ;n=36, X = 83.96 , 0 =12 TB Z - X 83.96 85 87 B= Type II error = P( fail to R. ß = P(*>83.94 | *=85) =P (2, 83.96-85) 12

Answer 2

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