A certain brokerage house wants to estimate the mean daily return on a certain stock. A random sample of 12 days yields the following return percentages. -1.56, – 1.89, -0.28, –0.55, 1.92, 2.12, 1.77, -2.47, 2.63, – 1.06, 0.29, 1.42 Send data to calculator Send data to Excel If we assume that the returns are normally distributed, find a 95% confidence interval for the mean daily return on this stock. 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 one decimal place. (If necessary, consult a list of formulas.) Lower limit:

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A certain brokerage house wants to estimate the mean daily return on a certain stock.
random sample of 12 days yields the following return percentages.
-1.56, -1.89, -0.28, -0.55, 1.92, 2.12, 1.77, -2.47, 2.63, - 1.06, 0.29, 1.42
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If we assume that the returns are normally distributed, find a 95% confidence interval for the mean daily return on this stock. 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 one decimal place. (If necessary, consult a list of formulas.)
Lower limit: l
Upper limit:
Transcribed Image Text:A certain brokerage house wants to estimate the mean daily return on a certain stock. random sample of 12 days yields the following return percentages. -1.56, -1.89, -0.28, -0.55, 1.92, 2.12, 1.77, -2.47, 2.63, - 1.06, 0.29, 1.42 Send data calculator Send data to Excel If we assume that the returns are normally distributed, find a 95% confidence interval for the mean daily return on this stock. 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 one decimal place. (If necessary, consult a list of formulas.) Lower limit: l Upper limit:
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