A certain brokerage house wants to estimate the mean dally return on a certain stock. A random sample of 16 days yields the following return percentages. -2.95, 1.88, 0.73, 0.66, 2.54, -1.09, 1.39, 1.84, -1.01, -0.07, 1.26, 0.32, -2.76, -1.68, -2.21, -2.88 Send data to calculator Send data to Excel If we assume that the returns are normally distributed, find a 99% confidence interval for the mean daily return on this stock. Give the lower limit and upper limit of the 99% confidence interval. Carry your intermediate computations to at least three decimal places. Round your answers to one decimal place. (If necessary, consult a list of formulas.) Lower limit: X ? Upper limit:From a large number of actuarial exam scores, a random sample of 375 scores is selected, and it is found that 281 of these 375 are passing scores. Based on this sample, find a 95% confidence Interval for the proportion of all scores that are passing. Then find the lower limit and upper limit of the 95% confidence interval. Carry your intermediate computations to at least three decimal places. Round your answers to two decimal places. (If necessary, consult a list of formulas.) Lower limit: X ? Upper limit