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




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 golf;ball. 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-value;for 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, and;what is the 95% confidence interval for the difference between the means of the two;populations?;5. Do you see a need for larger sample sizes and more testing with the golf balls? Discuss.;Current New;264 277;261 269;267 263;272 266;258 262;283 251;258 262;266 289;259 286;270 264;263 274;264 266;284 262;263 271;260 260;283 281;255 250;272 263;266 278;268 264;270 272;287 259;289 264;280 280;272 274;275 281;265 276;260 269;278 268;275 262;281 283;274 250;273 253;263 260;275 270;267 263;279 261;274 255;276 263;262 279


Paper#35559 | Written in 18-Jul-2015

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