A sample of 225 elements from a population with a standard deviation of 75 is selected....

Question

Question

A sample of 225 elements from a population with a standard deviation of 75 is selected. The sample mean is 150. The 95% confidence interval for m is:

Answer 1

Answer #1

س 5 : ه ره کا = 1 = ي : 2 2 = 1 interval confidence gs. 1. *- ** € 2 - 150 کو ولا يد x ( و -) + وکا د ۱ 5 دود.و کر 2052، ۱۰]

Answer 2

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