SOLVED: REM (rapid eye movement) sleep is the sleep during which most dreams occur. Each night, a person has both REM and non-REM sleep. However, it is thought that children have more REM sleep than adults. We assume that REM sleep time is normally distributed for both children and adults. A random sample of ni children (9 years old) showed that they had an average REM sleep time of X1 = 2.9 hours per night. From previous studies, it is known that σ1 = 1 hour. Another random sample of n2 adults
SOLVED: REM (rapid eye movement) sleep is the sleep during which most dreams occur. Each night, a person has both REM and non-REM sleep. However, it is thought that
VIDEO ANSWER: So today we're looking at REM sleep and there was a study done where they sampled nine children age nine and nine adults and looked at the mean a…
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REM sleep is the phase of sleep when most active dreaming occurs. In a study, the amount of REM sleep during the first four hours of sleep was described by a random variable T with probability density function f(t) = { (1)/(1600) t (1)/(20) - (1)/(1600) t 0 . where t is measured in minutes. (a) What is the probability that the amount of REM sleep is between 30 and 60 minutes? (b) Find the mean amount of REM sleep | Numerade
REM sleep is the phase of sleep when most active dreaming occurs. In a study, the amount of REM sleep during the first four hours of sleep was described by a random variable T with probability density function f(t) = { (1)/(1600) t (1)/(20) - (1)/(1600) t 0 . where t is measured in minutes. (a) What is the probability that the amount of REM sleep is between 30 and 60 minutes? (b) Find the mean amount of REM sleep | Numerade
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