Question

Given two independent random samples with the following results:

n1=8

x‾1=114

s1=22

n2=16

x‾2=88

s2=27

Use this data to find the 80% confidence interval for the true difference between the population means. Assume that the population variances are not equal and that the two populations are normally distributed.

Step 1 of 3:

Find the critical value that should be used in constructing the confidence interval. Round your answer to three decimal places.

Step 2 of 3:

Find the standard error of the sampling distribution to be used in constructing the confidence interval. Round your answer to the nearest whole number.

Step 3 of 3:

Construct the 80% confidence interval. Round your answers to the nearest whole number.

Answer 1