Submit Assignment Exam 3 HENRIETTA FUBARA Question 13 - of 13 Step 1 of 3 01:27:55 Given two independent random samples with the following results: n1 = 15 n2 = 9 X1 = 131 *2 = 115 $1 = 15 $2 = 14 Use this data to find the 99 % confidence interval for the true difference between the population means. Assume that the population variances are equal and that the two populations are normally distributed. Copy Data Step 1 of 3: Find the critical value that should be used in constructing the confidence interval. Round your answer to three decimal places. AnswerHow to enter your answer (opens in new window) 2 Points Tables Keypad