Question: Question 9. Find a 92% confidence interval for 1 2 if the data are taken from two independent normal populations. Results are x 1 =

Question 9.

Find a 92% confidence interval for 1 2 if the data are taken from two independent normal populations. Results are x 1 = 32, s21 = 40, n1 = 100, x 2 = 28, s2 = 41, n2 = 200. Give answer correct to three decimal places.

4 pts

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