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PROVIDE ALL CALCULATIONS 1. Given the following Confidence Interval for the population mean : ( 168.685, 177.315), find the sample mean used to obtain it.

PROVIDE ALL CALCULATIONS

1. Given the following Confidence Interval for the population mean : ( 168.685, 177.315), find the sample mean used to obtain it.

2. Given the following Confidence Interval for the population proportion p : (0.607, 0.667), find the margin of error used to obtain it.

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