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QUESTION 11 A simple random sample of size 11 is taken from a normal population. The sample mean equals 50.8 and the sample standard deviation

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QUESTION 11 A simple random sample of size 11 is taken from a normal population. The sample mean equals 50.8 and the sample standard deviation is 3.75. Find the 90% confidence interval for the population mean . Oa. (48.29 , 53.347) Ob. (52.0 , 56.0) Oc. (48.75, 52.85) Od. (46.021 , 55.892

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