Essay
A study conducted by a commuter train transportation authority involved surveying a random sample of 200 passengers. The results show that a customer had to wait, on average, 9.3 minutes, with a standard deviation of 6.2 minutes, to buy a ticket. Construct a 95% confidence interval for , the true mean waiting time.
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9.3 (1.9...View Answer
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Correct Answer:
Verified
9.3 (1.9...View Answer
Unlock this answer now
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