Espano A certain brokerage house wants to estimate the mean daily return on a certain stock. A random sample of 16 days yields the following return percentages. 1.09, 0.84, 1.88, - 1.48, -2.43, -0.63, - 0.58, 0.72, -2.81, 1.7, -2.79, -1.95, -1.32, 1.15, 2.94, 1.91 Send data to calculator Send data to Excel If we assume that the returns are normally distributed, find a 90% confidence interval for the mean daily return on this stock. Give the lower limit and upper limit of the 90% 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