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Hypothesis testing problems

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1) Clark Heter is an industrial engineer at Lyons Products.....

2) Two boats, the Prada (Italy), and the Oracle (U.S.A.) are competing for a spot in the upcoming America's Cup Race...

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1. Clark Heter is an industrial engineer at Lyons Products. He would like to determine whether there are more units produced on the afternoon shift than on the day shift. A sample of 54 day-shift workers showed that the mean number of units produced was 345, with a standard deviation of 21. A sample of 60 afternoon-shift workers showed that the mean number of units produced was 351, with a standard deviation of 28 units. At the .05 significance level, is the number of units produced on the afternoon shift larger?
Answer

The null hypothesis tested is

H0: There is no significant difference in the mean number of units produced in the two shifts.

Claim: H1: The mean ...

Solution Summary

The solution provides step-by-step method for the calculation of test statistic and P value for two hypothesis testing problems. Formula for the calculation and Interpretations of the results are also included. Interactive Excel sheet is included. The user can edit the inputs and obtain the complete results for a new set of data. The questions is from the book Lind, D., Marchal, W., Wathen, S., (2008). Statistical Techniques in Business and Economics.13th ed. Pg 332-360: McGraw-Hill/Irwin Series

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