, 7.1-7.3) < Question 11 of 20 > This test: 100 point(s) possible This question: 5 point(s) possible Submit test Use the given information to find the number of degrees of freedom, the critical values x and x2, and the confidence interval estimate of . It is reasonable to assume that a simple random sample has been selected from a population with a normal distribution. White Blood Counts of Women 95% confidence, n = 149, s = 1.96 (1000 cells/L) df = (Type a whole number.) x = (Round to two decimal places as needed.) x = (Round to two decimal places as needed.) The confidence interval estimate of is (1000 cells/L) < < (1000 cells/L). (Round to two decimal places as needed)