A pharmaceutical company wants to determine if their new drug reduces cholesterol more effectively than a placebo. The reduction in cholesterol in milligrams per deciliter was measured after three months. The data are as follows: Assume that the two samples are independent simple random samples selected from normally distributed populations, and do not assume that the population standard deviations are equal. Use degrees of freedom equal to the smaller of and . i. Does it appear that the new drug reduces cholesterol more effectively than the placebo? ii. Is it valid to argue that the drug might show a more significant effect with larger sample sizes?
