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Statistics for Business and Economics Case problem - Par, Inc.




Question;Par, Inc., is a major manufacturer of golf equipment. Management believes that Par?s market share could be increased with the introduction of a cut-resistant, longer-lasting golfball. Therefore, the research group at Par has been investigating a new golf ball coating designed to resist cuts and provide a more durable ball. The tests with the coating have been promising. One of the researchers voiced concern about the effect of the new coating on driving distances. Par would like the new cut-resistant ball to offer driving distances comparable to those of the current-model golf ball. To compare the driving distances for the two balls,40 balls of both the new and current models were subjected to distance tests. The testing was performed with a mechanical hitting machine so that any difference between the mean distances for the two models could be attributed to a difference in the two models. The results of the tests, are in attachment.1. Formulate and present the rationale for a hypothesis test that Par could use to compare the driving distances of the current and new golf balls.2. Analyze the data to provide the hypothesis testing conclusion. What is the p-valuefor your test? What is your recommendation for Par, Inc.?3. Provide descriptive statistical summaries of the data for each model.4. What is the 95% confidence interval for the population mean of each model, andwhat is the 95% confidence interval for the difference between the means of the twopopulations?5. Do you see a need for larger sample sizes and more testing with the golf balls? Discuss.Current New264 277261 269267 263272 266258 262283 251258 262266 289259 286270 264263 274264 266284 262263 271260 260283 281255 250272 263266 278268 264270 272287 259289 264280 280272 274275 281265 276260 269278 268275 262281 283274 250273 253263 260275 270267 263279 261274 255276 263262 279


Paper#61795 | Written in 18-Jul-2015

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