A new golf ball has been designed to improve driving distance off the tee when compared to their market competitor. To test their new ball, nine golfers hit a drive with the current ball and then hit another drive with the new ball. The distance in yards for each golfer is shown in the following table. Current Golf Ball New Golf Ball (Population 1) (Population 2) 212 215 236 228 250 256 243 264 250 248 235 255 230 239 225 218 220 239 а). Use = 0.05. State the null and alternative hypothesis. b). Use a = 0.05. State the decision rule in terms of the critical value. с). Use a = 0.05. What is your conclusion?

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A: The detailed solution is as follows below:

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