Determine the sample size needed to make us 95 percent


THE AIR SAFETY CASE DS AlertTimes

Referring to Exercise 8.19 (page 316), regard the sample of 15 alert times for which s = 1.026 as a preliminary sample. Determine the sample size needed to make us 95 percent confident that x, the sample mean alert time, is within a margin of error of .3 second of m, the population mean alert time using the new display panel.

Text Book: Business Statics in Practice By BOWERMAN.

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Applied Statistics: Determine the sample size needed to make us 95 percent
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