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Mathematics, 28.05.2021 07:00 swallowcaroline11

A university health services physician is concerned about how much sleep freshmen are getting. She asks a simple random sample of 50 students if they got at least 8 hours of sleep the previous night. Then she constructs a 95% confidence interval for the true proportion of all freshman college students who got at least 8 hours of sleep the previous night.(a) Explain what would happen to the width of the interval if the confidence level were decreased to 90%.

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