Mathematics, 26.11.2019 05:31 zachinartos1
Alathe is set to cut bars of steel into lengths of 6 centimeters. the lathe is considered to be in perfect adjustment if the average length of the bars it cuts is 6 centimeters. a sample of 144 bars is selected randomly and measured. it is determined that the average length of the bars in the sample is 6.09 centimeters with a standard deviation of .48 centimeters.
a. formulate the hypotheses to determine whether or not the lathe is in perfect adjustment.
b. compute the test statistic.
c. using the p-value approach, what is your conclusion? let ? = .05.
how do you compute using excel?
Answers: 1
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Alathe is set to cut bars of steel into lengths of 6 centimeters. the lathe is considered to be in p...
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