Case Study: 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. Managerial Report Prepare a managerial report that investigates the effect of the new coating on driving distances of golf balls by comparing driving distances for the two models. \fHypothesis Test Conduct a hypothesis test that Par could use to compare the driving distances of the current and new golf balls. (You may need to use the appropriate appendix table or technology to answer this question.) Formulate hypotheses that can be used to determine whether the sample data support the hypothesis that the population mean driving distance for the current golf ball is longer than that of the new golf ball. Let #1 = population mean driving distance for the current golf ball and #2 = population mean driving distance for the new golf ball. State the null and alternative hypotheses. (Enter != for # as needed.) Ho: Your answer includes 2 characters that can't be graded. Delete your recent changes and use the pad tools to finish your answer. More information Ha: Your answer includes 2 characters that can't be graded. Delete your recent changes and use the pad tools to finish your answer. More information Find the value of the test statistic. (Use #1 - /2. Round your answer to two decimal places.) Find the p-value. (Round your answer to four decimal places.) Using a = 0.05, state your conclusion. The null hypothesis ---Select- V be rejected. There ---Select-- V sufficient evidence to conclude that the population mean driving distance for the current golf ball is longer than that of the new golf ball. Descriptive Statistics Find the mean, standard deviation, and standard error for the driving distance (in yards) for current and new models of golf balls. (Round your answers to three decimal places.) Mean Standard deviation Standard error Current New Confidence Intervals You may need to use the appropriate appendix table or technology to answer this question. Develop a 95% confidence interval for the population mean driving distance in yards of each model. (Round your answers to two decimal places.) Current yd to ya New yd to yd Develop a 95% confidence interval for the difference between the means of the two populations. Use current - new. (Round your answers to two decimal places.) yd to Comment on the confidence intervals. The confidence intervals for the population mean driving distance --Select--- V. The confidence interval for the difference between the means --Select--- V zero. Thus, the result from the hypothesis test is ---Select-- V|by the confidence intervals. That is, there is ---Select-- V evidence to conclude that the mean driving distance for the current golf ball is longer than that of the new golf ball