A statirtics teacher sterted class obe dry by drmwing the numes of so students out of a hat and anked them to do as many puahupi aa they could. The 10 randomly selected stodents avernged 15 pashups per person with a standard deviation of 9 puahupa. Suppoe the distribution of the poppalstion of number of pachops that can be done is approximately normal. If we would tilke to eapture the populetion mean with 95% confidence the margin of error wonld be 2.125(1015) b. 1.960(109) c3.250(1015) d. 2.262(109)