Mathematics, 08.04.2021 01:00 nayelimoormann

A group of scientists want to set up an experiment to have a power of 0.90 to detect mu_A=23. Their hypotheses are H_0: mu ≤ 20, H_A: mu > 20. They plan to do the test at alpha=0.05 and using the population assumptions of X-bar is approximately normal and sigma = 2. What sample size should be used?

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A group of scientists want to set up an experiment to have a power of 0.90 to detect mu_A=23. Their...