Question 2 • Statistics
The observed difference in sample means is 4.9 feet in favor of the new golf ball. In the dotplot, only 6 of 200 simulated differences were 4.9 feet or greater, giving a small tail proportion of 6/200 = 0.03. Such a result would be uncommon if the balls performed the same, so there is convincing evidence that the new golf ball travels farther. Choice D states this conclusion.
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