A sample of320patients between the ages of38 and82were given a combination of drugs ezetimibe and simvastatin. They achieved a mean reduction in total cholesterol of0.94millimole per liter. Assume the population standard deviation is=0.17

(a)Construct a95% confidence interval for the mean reduction in total cholesterol in patients who take this combination of drugs. Round the answer to at least two decimal places .A95%confidence interval for the mean reduction in cholesterol is(___) < < (___)