Finding sample mean using hypothesis testing procedure


In testing the hypothesis, Ho: u> or equal to 31.5 and Ha: u<31.5 , using p-value approach, a p-value of 0.0409 was obtained. If σ = 8.7, find out a sample mean which produced this p-value given that sample of size n = 50 was randomly selected.

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Basic Statistics: Finding sample mean using hypothesis testing procedure
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