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E. REM (rapid eye movement) sleep is sleep during which most dreams occur. adults have less REM sleep than children. A sample of n₁ = 45 adults showed that they had a sample mean REM sleep time of 2.2 hours per night with standard deviation of 0.7 hour. Another sample of n₂ = 35 children showed that they had a sample mean REM sleep time of 2.7 hours per night with standard deviation of 0.5 hour. Do these data indicate that, on average, adults tend to have less REM sleep than children? Use a = 0.05. (Hint: use the Normal Distribution)

E. REM (rapid eye movement) sleep is sleep during which most dreams occur. adults have less REM sleep than children. A sample of n₁ = 45 adults showed that they had a sample mean REM sleep time of 2.2 hours per night with standard deviation of 0.7 hour. Another sample of n₂ = 35 children showed that they had a sample mean REM sleep time of 2.7 hours per night with standard deviation of 0.5 hour. Do these data indicate that, on average, adults tend to have less REM sleep than children? Use a = 0.05. (Hint: use the Normal Distribution)

Calculus For The Life Sciences
Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter13: Probability And Calculus
Section13.2: Expected Value And Variance Of Continuous Random Variables
Problem 10E
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3. REM (rapid eye movement) sleep is sleep during which most dreams occur. adults have less REM sleep than children. A sample of n₁ = 45 adults showed that they had a sample mean REM sleep time of 2.2 hours per night with standard deviation of 0.7 hour. Another sample of n₂ = 35 children showed that they had a sample mean REM sleep time of 2.7 hours per night with standard deviation of 0.5 hour. Do these data indicate that, on average, adults tend to have less REM sleep than children? Use a = 0.05. (Hint: use the Normal Distribution)
Transcribed Image Text:3. REM (rapid eye movement) sleep is sleep during which most dreams occur. adults have less REM sleep than children. A sample of n₁ = 45 adults showed that they had a sample mean REM sleep time of 2.2 hours per night with standard deviation of 0.7 hour. Another sample of n₂ = 35 children showed that they had a sample mean REM sleep time of 2.7 hours per night with standard deviation of 0.5 hour. Do these data indicate that, on average, adults tend to have less REM sleep than children? Use a = 0.05. (Hint: use the Normal Distribution)
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