Question 19 of 20 This test: 180 point(s) possible Resume later This question: 9 point(s) possible Submit test K Assume that population mean is to be estimated from the sample described. Use the sample results to approximate the margin of error and 95% confidence interval. Sample size, n = 100; sample mean, x =68.0 cm; sample standard deviation, s = 5.0 cm The margin of error is cm. (Round to one decimal place as needed.) Find the 95% confidence interval. cm