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TriCal Power conducted a study of average sustained wind velocity for two possible sites for its wind farm. For a sample of 125 days in North Canyon,...
TriCal Power conducted a study of average sustained wind velocity for two possible sites for its wind farm. For a sample of 125 days in North Canyon, average sustained velocity was 16.2 mph. For a sample of 160 days at Table Mesa, average sustained velocity was 14.3 mph. Your job is to determine whether these sample results are sufficient to reject a "no difference in (population) average sustained velocity" null hypothesis. Assume the population standard deviations are 4.9 mph for the North Canyon site and 5.1 mph for the Table Mesa site. Compute zstat, the sample test statistic and report it here.
A. 1.01
B. 3.19
C. 2.25
D. 3.71
E. 2.58
