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The average size of a farm in Ontario is 85 hectares. The average size of a...

The average size of a farm in Ontario is 85 hectares. The average size of a farm in Quebec is 93 hectares. Assume the data were obtained from two samples with standard deviations of 17 and 9 hectares, respectively, and sample sizes 8 and 10. Assume that the two populations are normal.

A. Compute the 99% confidence interval for the difference between the average farm sizes for the two cities.

B. Is there enough evidence to conclude that the average farm size is higher in Quebec? Use α = 0.05.

Math   Statistics-And-Probability   
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