Question: Past data indicate that the standard deviation of measurements made

Past data indicate that the standard deviation of measurements made on sheet metal stampings by experienced inspectors is 0.41 square inch. If a new inspector measures 50 stampings with a standard deviation of 0.49 square inch, use the method of Exercise 13.7 to test the null hypothesis σ = 0.41 square inch against the alternative hypothesis σ > 0.41 square inch at the 0.05 level of significance.

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  • CreatedNovember 04, 2015
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