Question: Referring to Exercise 8 19 regard the sample of 15 alert

Referring to Exercise 8.19, regard the sample of 15 alert times (which has standard deviation 1.026) as a preliminary sample. Determine the sample size needed to make us 95 percent confident that x-bar, the sample mean alert time, is within a margin of error of .3 second of μ, the population mean alert time using the new display panel.

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  • CreatedMay 28, 2015
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