9) K < Question 1 of 8 > This test: 35 point(s) possible This question: 3 point(s) possible Submit test Determine the point estimate of the population proportion, the margin of error for the following confidence interval, and the number of individuals in the sample with the specified characteristic, x, for the sample size provided. Lower bound = 0.102, upper bound = 0.438, n = 1000 The point estimate of the population proportion is (Round to the nearest thousandth as needed.) The margin of error is (Round to the nearest thousandth as needed.) The number of individuals in the sample with the specified characteristic is (Round to the nearest integer as needed.) 80 F2 F3 a 04 F4 MacBook Air DII DD F5 F6 F7 F8 F9 F10 Time Remaining: 00:38:48 Next 24 F11 F12 ter 9) < Question 3 of 8 This test This que Determine the t-value in each of the cases. K Click the icon to view the table of areas under the t-distribution. (a) Find the t-value such that the area in the right tail is 0.20 with 15 degrees of freedom. (Round to three decimal places as needed.) (b) Find the t-value such that the area left of the t-value is 0.005 with 12 degrees of freedom. [Hint: Use symmetry.] (Round to three decimal places as needed.) (c) Find the critical t-value that corresponds to 70% confidence. Assume 11 degrees of freedom. (Round to three decimal places as needed.)