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(10 points) Problem #6. A child psychologist wishes to estimate the mean age at which a child learns to walk. The psychologist wishes to be
(10 points) Problem #6. A child psychologist wishes to estimate the mean age at which a child learns to walk. The psychologist wishes to be 97% confident the sample mean is within 0.5 months of the population mean. Determine the necessary sample size if o = 2.75 months. * = 0.97 = 0. 03 bumnot 6 = population standard 4
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