Question: The null hypothesis, Ho: = 250, was tested against the alternative hypothesis, Ha: < 250 .A sample of resulted in a calculated test

The null hypothesis, Ho: µ = 250, was tested against the alternative hypothesis, Ha: µ < 250 .A sample of resulted in a calculated test statistic of z = - 1.18 . If s = 22.6, find the value of the sample mean, . Find the sum of the sample data,∑ .

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