PLZ WILL LEAVE LIKE Mortgage rates: Following are interest rates (annual percentage rates) for a 30 - year fixed ratemortgage from a sample of lenders in Macon, Georgia, on June 20, 2013. Assume that the population is approximatelynormal. \table[[4.488, 4.195, 4.444, 4.903, 4.685, 4.262), [4.175, 3.514, 4.135, 4.242, 4.805, 4.35]] Part: 0/ 3 Part 1 of 3 (a) Find the samplestandard deviation s. Round the answer to at least four decimal places. The sample standard deviation s is Part: Part 2of 3 (b) Construct a 95% confidence interval for the population standard deviation o. Round the answers to at least twodecimal places. A 95% confidence interval for the population standard deviation is, <σ< Part 3 Based on the confidenceinterval, is it reasonable to believe that the population standard deviation is greater than .10? THANK U WILL LIKE
PLZ WILL LEAVE LIKE Mortgage rates: Following are interest rates (annual percentage rates) for a 30 - year fixed ratemortgage from a sample of lenders in Macon, Georgia, on June 20, 2013. Assume that the population is approximatelynormal. \table[[4.488, 4.195, 4.444, 4.903, 4.685, 4.262), [4.175, 3.514, 4.135, 4.242, 4.805, 4.35]] Part: 0/ 3 Part 1 of 3 (a) Find the samplestandard deviation s. Round the answer to at least four decimal places. The sample standard deviation s is Part: Part 2of 3 (b) Construct a 95% confidence interval for the population standard deviation o. Round the answers to at least twodecimal places. A 95% confidence interval for the population standard deviation is, <σ< Part 3 Based on the confidenceinterval, is it reasonable to believe that the population standard deviation is greater than .10? THANK U WILL LIKE
Step by step
Solved in 7 steps with 8 images
