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according to revenue canada Agency. the average length of time for an Individual to complete tax return form IS 11: 63 hours. the distribution s

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according to revenue canada Agency. the average length of time for an Individual to complete tax return form IS 11: 63 hours. the distribution s unknown Lek Is assume that the standard davation is 2:4 hours. suppose we randomly sample 64 tax payers. 1 Can you assume this sample mean Follows a normal distribution? why? 5) what Is the probability that the sample moon is more than 12 hours? 18 this a likely result? Explain

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