(See Solution) An industrial psychologist wishes to estimate the mean verbal intelligence score of all employees in a large industry. How big should the sample he
Question: An industrial psychologist wishes to estimate the mean verbal intelligence score of all employees in a large industry. How big should the sample he if the desired precision (i.e. margin of error) is 6.0 and the desired confidence coefficient is 0.95? The population variance is believed to be 144.
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