A national organization has been working with utilities throughout the nation to

Question

A national organization has been working with utilities throughout the nation to find sites for large wind machines for generating electric power. Wind speeds must average more than 13 miles per hour (mph) for a site to be acceptable. Recently, the organization conducted tests at a particular site under construction for a wind machine. Based on a sample of n = 59 wind speed recordings (taken at random intervals) at the site, the wind speeds averaged x-bar = 12 mph, with a standard deviation of s = 3 mph. To determine whether the site meets the organization’s requirements, consider the test, H0: 13 vs. H1: > 13, where is the true mean wind speed at the site and = 0.05. Fill in the blanks. "A Type II error in the context of this problem is to conclude that the true mean wind speed at the site ____ 13 mph when it actually _____ 13 mph."

Explanation / Answer

Option-B) equals , exceeds.   

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