Question

(1 point) Using diaries for many weeks, a study on the lifestyles of visually impaired students...

(1 point) Using diaries for many weeks, a study on the lifestyles of visually impaired students was conducted. The students kept track of many lifestyle variables including how many hours of sleep obtained on a typical day. Researchers found that visually impaired students averaged 8.4 hours of sleep, with a standard deviation of 1.91 hours. Assume that the number of hours of sleep for these visually impaired students is normally distributed

(a)  What is the probability that a visually impaired student gets less than 6.86.8 hours of sleep?

(b)  What is the probability that a visually impaired student gets between 6.66.6 and 10.7110.71 hours of sleep?

(c)  Twenty percent of students get less than how many hours of sleep on a typical day?

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Using diaries for many weeks, a study on the lifestyles of visually impaired students was conducted....
Using diaries for many weeks, a study on the lifestyles of visually impaired students was conducted. The students kept track of many lifestyle variables including how many hours of sleep obtained on a typical day. Researchers found that visually impaired students averaged 8.85 hours of sleep, with a standard deviation of 2.19 hours. Assume that the number of hours of sleep for these visually impaired students is normally distributed. (a)  What is the probability that a visually impaired student gets less...
Using diaries for many weeks, a study on the lifestyles of visually impaired students was conducted....
Using diaries for many weeks, a study on the lifestyles of visually impaired students was conducted. The students kept track of many lifestyle variables including how many hours of sleep obtained on a typical day. Researchers found that visually impaired students averaged 8.28 hours of sleep, with a standard deviation of 1.9 hours. Assume that the number of hours of sleep for these visually impaired students is normally distributed. (a) What is the probability that a visually impaired student gets...
Using diaries for many weeks, a study on the lifestyles of visually impaired students was conducted....
Using diaries for many weeks, a study on the lifestyles of visually impaired students was conducted. The students kept track of many lifestyle variables including how many hours of sleep obtained on a typical day. Researchers found that visually impaired students averaged 8.38 hours of sleep, with a standard deviation of 2.76 hours. Assume that the number of hours of sleep for these visually impaired students is normally distributed. (a) What is the probability that a visually impaired student gets...
Using diaries for many weeks, a study on the lifestyles of visually impaired students was conducted....
Using diaries for many weeks, a study on the lifestyles of visually impaired students was conducted. The students kept track of many lifestyle variables including how many hours of sleep obtained on a typical day. Researchers found that visually impaired students averaged 9.649.64 hours of sleep, with a standard deviation of 2.282.28 hours. Assume that the number of hours of sleep for these visually impaired students is normally distributed. (a)  What is the probability that a visually impaired student gets less...
Using diaries for many weeks, a study on the lifestyles of visually impaired students was conducted....
Using diaries for many weeks, a study on the lifestyles of visually impaired students was conducted. The students kept track of many lifestyle variables including how many hours of sleep obtained on a typical day. Researchers found that visually impaired students averaged 8.9 hours of sleep, with a standard deviation of 2.37 hours. Assume that the number of hours of sleep for these visually impaired students is normally distributed. (a)  What is the probability that a visually impaired student gets less...
Using diaries for many weeks, a study on the lifestyles of visually impaired students was conducted....
Using diaries for many weeks, a study on the lifestyles of visually impaired students was conducted. The students kept track of many lifestyle variables including how many hours of sleep obtained on a typical day. Researchers found that visually impaired students averaged 9.83 hours of sleep, with a standard deviation of 2.02 hours. Assume that the number of hours of sleep for these visually impaired students is normally distributed. (a) What is the probability that a visually impaired student gets...
Study of the lifestyle of visually impaired students. Using diaries, the students kept track of several...
Study of the lifestyle of visually impaired students. Using diaries, the students kept track of several variables, including numbers of hours of sleep obtained in a typical day. These visually impaired students had a mean of 9.06 hours and a standard deviation of 2.05 hours. Assume that the distribution of the numbers of hours of sleep for this group of students is approximately normal. A= 6 a) Find the probability that randomly selected student from this group obtains less than...
(1 point) Healty people have body temperatures that are normally distributed with a mean of 98.20∘F...
(1 point) Healty people have body temperatures that are normally distributed with a mean of 98.20∘F and a standard deviation of 0.62∘F . (a) If a healthy person is randomly selected, what is the probability that he or she has a temperature above 99.5∘F? answer: (b) A hospital wants to select a minimum temperature for requiring further medical tests. What should that temperature be, if we want only 1.5 % of healty people to exceed it? answer: (1 point) Using...
A journal published a study of the lifestyles of visually impaired students. Using diaries, the students...
A journal published a study of the lifestyles of visually impaired students. Using diaries, the students kept track of several variables, including number of hours of sleep obtained in a typical day. These visually impaired students had a mean of 8.85 hours and a standard deviation of 2.13 hours. Assume that the distribution of the number of hours of sleep for this group of students is approximately normal. Complete parts a through c. a. Find P(x> 12)=0.0694 (Round to four...
The Journal of Visual Impairment & Blindness (May-June 1997) published a study of the lifestyles of...
The Journal of Visual Impairment & Blindness (May-June 1997) published a study of the lifestyles of visually impaired students. Using diaries, the students kept track of several variables, including the number of hours of sleep obtained in a typical day. These visually impaired students had a mean of 9.06 hours and a standard deviation of 2.11 hours. Assume that the distribution of the number of hours of sleep for this group of students is approximately normal. a. Find the probability...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT