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We want to test the following hypothesis: H0: = 3000, H1: < 3000. Based on a sample size n = 245, from a population with

We want to test the following hypothesis: H0: = 3000, H1: < 3000.

Based on a sample size n = 245, from a population with a standard deviation, , of 625. We use the following decision rule:

Reject H0 if X-bar < 2930, otherwise do not reject H0.

What is the power of the test if in reality m is 2940

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