Question: Question 3 - Normal Distribution (4 marks) According to a recent study, the average night's sleep is 8 hours. Assume that the standard deviation is

Question 3 - Normal Distribution (4 marks) According to a recent study, the average night's sleep is 8 hours. Assume that the standard deviation is 1.1 hours and that the probability distribution is normal. a) What is the probability that a randomly selected person sleeps for more than 8 hours? (2 marks) b) Doctors suggest getting between 7 and 9 hours of sleep each night. What percentage of the population gets this much sleep? (2 marks)

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Mathematics Questions!

According to a recent study, the average night's sleep is 6.9 hours. Assume that the standard deviation is 0.8 hours and that the probability distribution is normal. a. What is the probability that a...

Question 11 of 14 (5 points} | Attempt 1 of 3 View question in a po pup 3-3 SECTin EKEI'CiSB 13 (D-VEIUI Sleep Time A person read that the average number of hours an adult sleeps on Friday night to...

(7.01) 5 Ap stats Multiple Choice Questions Screenshot contain questions and answers I would be very grateful if there was a short explanation so, I could understand. Thank you :) Question 1 (4...

7. [-/4.08 Points] Is the national crime rate really going down? Some sociologists say yes! They say that the reason for the decline in crime rates in the 1980s and 1990s is demographics. It seems...

Is the national crime rate really going down? Some sociologists say yes! They say that the reason for the decline in crime rates in the 1980s and 1990s is demographics. It seems that the population...

Your group has been hired by Sudhir Murarka to assess and improve the quality of Gati's newly introduced Premium Express Delivery process. Sudhir is concerned with the number of customer complaints...

The interval is called a confidence interval and the spread of the interval is dependent in part on the spread of the sample statistic around the true population parameter. We know how sample...

Miami Dade College STAT 2023 PROF: G. GARRIDO,Ph.D. TEST III Chapter 7 MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the quest 1) An economist is interested...

A high-profile consulting company chooses its new entry-level employees from a pool of recent college graduates using a five-step interview process. Unfortunately, there are usually more candidates...

Halifax Souvenir Company currently orders 500 units four times each year. Each order costs $12 and each unit costs $1.20 per year to carry. On average, it takes 5 days to receive an order from the...

Jerry sprayed all of the landscaping around his house with a pesticide in June 2015. Shortly thereafter, all of the trees and shrubs unaccountably died. The FMV and the adjusted basis of the plants...

What is an "offer"? Refer to Figure 3.1. How is it different from an invitation to treat, a "mere puff" or a statement supplying information? Referring to newspapers, magazines or other material...

Which of the following statements is more of a general characteristics of a service organization as compared to a manufacturing organization: at of jestion Select one: O a. The response time is...

3. Im trying to point out what we need to do to make this happen

1. I try to create an image of the message

4. I try to make them feel what I really mean (1 is related to the visionary, 2 to the logical, 3 to action and 4 to the emotional).