A courier service advertises that its average delivery time is less than 6 hours for local...

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A courier service advertises that its average delivery time isless than 6 hours for local deliveries. A sample of 16 localdeliveries was recorded and yielded thestatistics     x =   5.83hours and s = 1.59 hours. At the 5% significance level, conduct ahypothesis test to determine whether there is sufficient evidenceto support the courier’s advertisement.  

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Let be the true meandelivery time for local deliveries The appropriate hypothesisareH0 6 hoursH1 6 hoursSample mean 583hoursSample    See Answer
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