Question: For the sample data below, construct four different interval estimates of the population mean, one each for the 90%, 95%, 99%, and 99.9% level. What

For the sample data below, construct four different interval estimates of the population mean, one each for the 90%, 95%, 99%, and 99.9% level.

What happens to the interval width as confi dence level increases? Why?

X — = 100 s = 10 N = 500

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