Confidence interval-half standard deviation

Reference no: EM13105872

1. What sample size would be needed to estimate he population mean to within one-half standard deviation with 95% confidence?

2. A 95% confidence interval estimate for a population mean was computed to be (44.8 to 50.2). Determine the mean of the sample, which was used to determine the interval estimate.

Reference no: EM13105872

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