Assume that the population distributions of times (in minutes) for two different skiers to race the same course are normal with equal variances. Two random samples, drawn independently from the populations, showed the following statistics: = 4, = 7.52, = 0.25; = 5, = 8.37, and = 0.09. Construct and interpret a 95% confidence interval for the true difference in average time of skiers to race the same course.

Question

Assume that the population distributions of times (in minutes) for two different skiers to race the same course are normal with equal variances. Two random samples, drawn independently from the populations, showed the following statistics:  = 4,  = 7.52,  = 0.25;  = 5,  = 8.37, and  = 0.09. Construct and interpret a 95% confidence interval for the true difference in average time of skiers to race the same course.

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The Answer of Assume that the population distributions of times (in minutes) for two different skiers to race the same course are normal with equal variances. Two random samples, drawn independently from the populations, showed the following statistics:  = 4,  = 7.52,  = 0.25;  = 5,  = 8.37, and  = 0.09. Construct and interpret a 95% confidence interval for the true difference in average time of skiers to race the same course.

Assume That the Population Distributions of Times (In Minutes) for Two