Suppose that observations on a stock price (in dollars) at the end of each of 15 consecutive weeks are as follows: 145.39, 141.28. 139.7. 142.48, 145.9.146.35, 145.15, 147.7, 144.48, 146.06, 146.04, 146.48, 145.45, 148.33, 151.35 1) 0.0327 2) 0.0272 3) 0.0227 4) 0.0722 Suppose that observations on a stock price (in dollars) at the end of each of 15 consecutive weeks are as follows: 145.39, 141.28. 139.7. 142.48, 145.9.146.35, 145.15, 147.7, 144.48, 146.06, 146.04, 146.48, 145.45, 148.33, 151.35 1) 0.0327 2) 0.0272 3) 0.0227 4) 0.0722