population has a distribution that is approximately normal. The sample statistic. 77.9 inches; and s= 3.50 inches. Determine the critical value of t and the margin of error, and the construct the 95% confidence interval estimate of the population mean. 3.50 Critical Value of t: 2.131 X JTe E = A.B65 95% Confidence Interval: 19,035, 29,765) AA2uord OSA 2. A simple random sample of men is obtained, and the elbow-to-fingertip length of each man is measured. the population of those lengths has a distribution that is normal. The sample - statistics are n= 35, = 14.5 inches, and s= 0.7 inch. Determine the critical value of t and the margin of error, and then construct the 95% confidence interval estimate of the population mean. Inter Critical Value of t: E = mo 95% Confidence Interval: Critical 3. A simple random sample of epicenter depths of 51 earthquakes has a mean of 9.808 kilometers (km) and a standard deviation of 5.013 km. Determine the critical value of t and the margin of error, and then construct the 95% confidence interval estimate of the mean epicenter depth of depth of all earthquakes. Value of t: