Question

A random sample of 18 summer days in Boise, ID, had an average high temperature of 87.76^o F, with a standard deviation of 10.81^o F, while a random sample of 15 summer days in Duluth, MN, had an average high temperature of 70.73^o F, with a standard deviation of 6.71^o F. Find a 99% confidence interval for the difference in the average summer high temperatures between the two cities and explain what the interval means.

Provide the difference between the averages:

Provide the degrees of freedom for this problem:

Provide the critical value for the interval:

Provide the SE of the interval:

Provide the ME of the interval:

Provide the confidence interval:

Provide the explanation of the confidence interval:

Answer 1