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Want the 98% confidence interval when the sample size is 50, sample mean is 42 and sample standard deviation is 5. Keep three decimal places in your response.
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Doctor wants the estimate the HDL cholesterol of all 20 to 29 year old females. How many subjects are needed to estimate the HDL cholesterol within 3 points with 99% confidence assuming o=18.2? Suppose the doctor would b ...
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