From a sample of 50 monthly returns of a stock, you have determined a sample mean of 0.36% and standard deviation of 0.2%. Construct a 90% confidence interval for the monthly return and report the standard error to 6 decimal places and include a leading. 0. Question 9 From a sample of 50 monthly returns of a stock, you have determined a sample mean of 0.36% and standard deviation of 0.2%. Construct a 90% confidence interval for the monthly return and report the z-value reliability factor to 5 decimal places. 4

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