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'tlltl amp;l'l' Inn-tu : A A ' 'u.amp; . ' amp;'u,' ' un ' xamp;.amp; 'l mt Rkl'l 'l . +' '. amp;mumamp; M...

I'm a random sample of 27 people, the mean commute time to work was 30.4 minutes and the standard deviation was 7.3. assume the population is normally distributed and use t distribution to construct a 99%confidence interval for the population mean. what is the margin of error.

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