A simple random sample of 26 patients between the ages of 38 and 82 were given a combination of the drugs ezetimibe and simvastatin. They achieved an average reduction of total cholesterol of 0.9 millimole per liter with a standard deviation of 0.15 millimole per liter. We are interested in the reduction of cholesterol. It has been confirmed that the random vairable comes from a normally distributed population. d) What is the standard deviation of the sampling distribution of the sample means? d) Find the margin of error for a 99% confidence interval for the true average cholesterol reduction. Use your T-table to do this and round to the fourth e) Round to the fourth. We are 99% confident that the true average reduction of cholesterol of those between the ages of 38 and 82 given the drugs ezetimibe and simvastatin is between and .
A simple random sample of 26 patients between the ages of 38 and 82 were given a combination of the drugs ezetimibe and simvastatin. They achieved an average reduction of total cholesterol of 0.9 millimole per liter with a standard deviation of 0.15 millimole per liter. We are interested in the reduction of cholesterol. It has been confirmed that the random vairable comes from a
d) What is the standard deviation of the sampling distribution of the sample means?
d) Find the margin of error for a 99% confidence interval for the true average cholesterol reduction. Use your T-table to do this and round to the fourth
e) Round to the fourth. We are 99% confident that the true average reduction of cholesterol of those between the ages of 38 and 82 given the drugs ezetimibe and simvastatin is between and .
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