The research director for Top Flite wants to know whether there is a difference in the distribution of the distances traveled by two of the company's golf balls. Eight of its XL-5000 brand and eight of its D2 brand balls were hit by an automatic fairway metal. The distances (in yards) were as follow. If we assume that the data are not normally distributed. At the 0.02 significance level, can we claim that XL-5000 golf balls travel longer?
Added by Milagros J.
Step 1
- Alternative hypothesis (H1): XL-5000 distances are greater than D2 distances (one-sided test). - Since the data are not assumed to be normally distributed and samples are independent with n1 = n2 = 8, use a nonparametric test: Mann-Whitney U test (also called Show more…
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