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My family bought a lovely suburban home that was advertised as having a 25 minute commute...

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My family bought a lovely suburban home that was advertised ashaving a 25 minute commute from UH. After a while I began to besuspicious that the commute was actually longer. I kept track of mycommute times for 40 days and found my drive averaged 32 minuteswith a standard deviation of 10 minutes. Does my evidence maketheir claim suspect? Find an answer with a 95% confidence interval.Find an answer using a hypothesis test with a Z score at the 99%level.

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3.6 Ratings (542 Votes)
Formula for Confidence Interval for Population mean whenpopulation Standard deviation is not knownConfidence level 95 10095100 0052 0052 0025n Sample size Number    See Answer
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