Case 1 - BA 3400 Case Study Submission Cover Sheet Case...

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BA 3400 Case Study Submission Cover Sheet Case Study # 1 Par, Inc. Date Submitted: 09/22/2010 Submitted by: Emir Pasovic
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1. H : µ - µ = 0 Hа: µ - µ ≠ 0 Par should use this hypothesis test, since it hopes that there is not a significant difference in driving distance between its new and current model golf balls. 2. The data above shows that the p-value is 0.18798. This p-value is greater than the alpha of 0.05, so I would recommend Par, Inc. not to reject the null hypothesis. t-Test: Two-Sample Assuming Unequal Variances Current New Mean 270.275 267.5 Variance 76.6147435 9 97.9487179 5 Observations 40 40 Hypothesized Mean Difference 0 df 77 t Stat 1.32836159 4 P(T<=t) one-tail 0.09399121 1 t Critical one-tail 1.66488453 8 P(T<=t) two-tail 0.18798242 1 t Critical two-tail 1.99125436 3
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3. New Mean 267.5 Standard Error 1.56483799 Median 265 Mode 263 Standard Deviation 9.89690446 Sample Variance 97.9487179 Kurtosis - 0.51458655 Skewness 0.23981045 Range 39 Minimum 250 Maximum
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Case 1 - BA 3400 Case Study Submission Cover Sheet Case...

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