The time a student sleeps per night has a normal distribution with mean 6.2 hours and a standard deviation of 0.5 hours. Find the 32nd percentile of the sleeping time of students.

The time a student sleeps per night has a normal distribution with mean 6.2 hours and...
Central Limit Theorem The time a student sleeps per night has a distribution with mean 6.2 hours and a standard deviation of 0.5 hours. Find the probability that average sleeping time for a randomly selected sample of 32 students is more than 6 hours per night. (keep 4 decimal places)
The time a student sleeps per night has a distribution with mean 5.1 hours and a standard deviation of 0.4 hours. Find the probability that average sleeping time for a randomly selected sample of 30 students is more than 5 hours per night. (keep 4 decimal places)
It is known that the number of hours a student sleeps per night has a normal distribution. The sleeping time in hours of a random sample of 8 students is given below. 8.6, 8.3, 7.6, 6, 7.1, 5.6, 5.1, 6. Compute a 98% confidence interval for the true mean time a student sleeps per night and fill in the blanks appropriately. We have 98 % confidence that the true mean time a student sleeps per night is between ____ and...
Suppose the amount of time college students sleep per night follows a normal distribution with mean 8 hours and standard deviation 0.75 hours. Let Y denote the amount of time a randomly selected student sleeps per night. What is P(7 < Y <9)? Round to 4 decimal places.
the amount of sleep per night of us.adults follows a normal distribution with mean 7.5 hours and A lot of research is conducted on the sleeping habits of US adults. One study reported that standard de 12 hours Question 1 1 The shaded area in the image below represents which of the follow n PXX-5 PSX9.5) PEX- S X 9.5) PX X5 Question 14 of 18 Using the Standard Deviation Rule, what is the probability that a randomly chosen U.S....
If a study shows that the amount of time a student sleeps on any given nights is normally distributed with a mean of 7.2 hours and a standard deviation of 3 hours. Find the probability of 28 randomly selected students sleeping less than 8 hours.
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Question 1 The time a student sleeps per night has a distribution with mean 5.1 hours and a standard deviation of 0.5 hours. Find the probability that average sleeping time for a randomly selected sample of 42 students is more than 5 hours per night. I (keep 4 decimal places) I don't know 2 attempts You answered 0 out of 0 correctly. Asking up to 5.
The typical amount of sleep per night for undergraduate college students has an approximately normal distribution with a mean of 7 and a standard deviation of 2.10 hours. Based on this distributional information we can conclude that about 99.7 % of this population sleep between ____ and _____hours per night.
estions standard deviatic ht. Construct a Os 5 Points Samber of sleeping hours per per night of UBT students is approximately normally distributed with mean ndard deviation of 1.8 hours. A random sample of 35 students has a mean y = 7.3 hours of scop Construct a 95% confidence interval for the mean sleeping hours per night.
The distribution of hours of sleep per week night, among college students, is found to be Normally distributed, with a mean of 6.5 hours and a standard deviation of 1 hour. What range contains the middle 95% of hours slept per week night by college students (a) 5.5 and 7.5 hours per week night (b) 4.5 and 7.5 hours per week night (c) 4.5 and 8.5 hours per week night 3.19