Value of the standard deviation

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According to the UK All Green and Bowling Association, male retirees spend an average of 15 hours of bowling per week. Suppose you are given a sample of 100 male retirees and that the population variance is 25. ) Suppose that the population standard deviation is unknown. If 8% of all sample means are smaller than 13 and the population mean is still 15, what is the value of the standard deviation?

Reference no: EM131402672

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