Question

It is known that the number of hours a student sleeps per night has a normal...

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 _____ hours. (Keep 3 decimal places)

0 0
Add a comment Improve this question Transcribed image text
Know the answer?
Add Answer to:
It is known that the number of hours a student sleeps per night has a normal...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions
  • The time a student sleeps per night has a distribution with mean 5.1 hours and a...

    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)

  • The time a student sleeps per night has a normal distribution with mean 6.2 hours and...

    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.

  • Central Limit Theorem The time a student sleeps per night has a distribution with mean 6.2...

    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 recommended number of hours of sleep per night is 8 hours, but everybody "knows" that...

    The recommended number of hours of sleep per night is 8 hours, but everybody "knows" that the average college student sleeps less than 7 hours. The number of hours slept last night by 10 randomly selected college students is listed below. Complete the following hypothesis test: Ho: μ = 7, Ha: μ < 7, α = 0.05. 6 5.5 6.9 7.6 6.3 7.4 5.3 6.1 5.5 7.6 (a) Find t. (Give your answer correct to two decimal places.) (ii) Find...

  • estions standard deviatic ht. Construct a Os 5 Points Samber of sleeping hours per 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.

  • please explain how to get answer -how to do it in Excel Question 1 The time...

    please explain how to get answer -how to do it in Excel 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 recommended number of hours of sleep per night is 8 hours, but everybody "knows" that...

    The recommended number of hours of sleep per night is 8 hours, but everybody "knows" that the average college student sleeps less than 7 hours. The number of hours slept last night by 10 randomly selected college students is listed below. Complete the following hypothesis test: Ho: μ = 7, Ha: μ < 7, α = 0.05. 7.9 6.2 6.8 7 6.9 5.6 5.2 5.7 7.3 5.5 (a) Find t. (Give your answer correct to two decimal places.) (ii) Find...

  • Suppose the amount of time college students sleep per night follows a normal distribution with mean...

    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 main number of hours of part-time work per week for a sample of 133 high...

    The main number of hours of part-time work per week for a sample of 133 high school students is 27 is the margin of error for the population mean with 80 for 98% confidence interval of 2.4 constructive 98% confidence interval for the main number of hours apart time work per week for students

  • the amount of sleep per night of us.adults follows a normal distribution with mean 7.5 hours...

    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....

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT