QUESTION 28 A random sample of n = standard deviation of 26.8. 225 and = 21 was drawn from a normal population with a kn
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QUESTION 28 A random sample of n = standard deviation of 26.8. 225 and = 21 was drawn from a normal population with a kn
QUESTION 28 A random sample of n = standard deviation of 26.8. 225 and = 21 was drawn from a normal population with a known Calculate the 95% confidence interval of the population mean. (4) [4]