(Answered) Question the average wind speed in casper has been found to

Statistics

Question: The average wind speed in Casper has been found to be 12.7 mph and in Tucson it has been found to be 6.2 mph. To test the relationship between the averages, a sample of 31 days was selected from each city and a summary of the data is:

Casper Tucson

Sample size 31 31

Sample mean 12.85 mph 7.9 mph

Sample standard deviation 3.3 mph 2.8 mph

Is there sufficient evidence, at Alpha = .05, to conclude that the average wind speed is greater in Casper than in Tucson?

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