Suppose that a random variable x has normal distribution with mean=80 and standard deviation=18. Calculate the following probabilities for the sample mean if the sample size is 36.
Let X i , ( 1? i ? 36 ) be the iid has normal distribution withmean ?=80?¿
Standard Deviation ?=18
36 ? Xi ´
Let us define X= i=1
36 Now use Centrallimit theorem
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Sep 13, 2020EXPERT
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