SBE10 CP10

# SBE10 CP10 - Chapter 10 Statistical Inference About Means and Proportions with Two Populations Chapter 10 Statistical Inference About Means and

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Chapter 10 Statistical Inference About Means and Proportions with Two Populations Chapter 10 Statistical Inference About Means and Proportions with Two Populations Case Problem: Par, Inc. This case can provide discussion and differing opinions as to what hypothesis test should be conducted. Students should begin to see that logical arguments exist for structuring the hypotheses differently. In some interpretations of the problem, a two - tailed test can be appropriate for Par, Inc. In other interpretations of the same problem, a one - tailed test may be preferred. We suggest accepting different formulations of the Par, Inc. hypothesis test provided convincing rationale is provided. Letting μ 1 = the population mean for the current golf ball 2 = the population mean for the new golf ball, we suggest the following hypothesis test: H 0 : 1 - 2 0 H a : 1 - 2 > 0 This formulation is based on the information that the new golf ball is being designed to “resist cuts and yet still offer good driving distances.” The research hypothesis is not to prove the new golf ball

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## This note was uploaded on 07/26/2009 for the course QM 3342 taught by Professor Unknown during the Spring '09 term at Troy.

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SBE10 CP10 - Chapter 10 Statistical Inference About Means and Proportions with Two Populations Chapter 10 Statistical Inference About Means and

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