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a random sample of 1160 adults, the mean amount of sleep per night is 8.86 hours. Assuming the population standard deviation for amount of sleep per...

a random sample of 1160 ​adults, the mean amount of sleep per night is 8.86 hours. Assuming the population standard deviation for amount of sleep per night is 3.2 hours, what is the confidence interval for the mean amount of sleep per night.

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CI: mean +- 1.96*sd/sqrt(n) = 8.86... View the full answer

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The 95% confidence interval for the mean... View the full answer

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