ZuoTi.Pro
Question

A professor wants to determine the relationship between the number of hours of sleep students get...

A professor wants to determine the relationship between the number of hours of sleep students get during the week and the GPA of students in the Fall of 2019. Based on the data, decide in the correlation is significant at alpha = 0.05.

x

y

xy

x^2

y^2

6

3.2

19.2

36

10.24

4

3.4

13.6

16

11.56

5

4.0

20

25

16

6

2.7

16.2

36

7.29

5

3.0

15

25

9

7

3.8

26.6

49

14.44

∑x = 33

∑y = 20.1

∑xy = 110.6

∑x^2 = 187

∑y^2 = 68.53

Showing all work, find the 95% prediction interval.  

math   Statistics-And-Probability   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

0 0
Add a comment
Know the answer?
Add Answer to:
A professor wants to determine the relationship between the number of hours of sleep students get...
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. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions

  • A professor at a university wants to estimate the average number of hours of sleep students...

    A professor at a university wants to estimate the average number of hours of sleep students get during exam week. On the first day of exams, she asked 27 students how many hours they had slept the night before. The average of the sample was 3.79 with a standard deviation of 1.224. When estimating the average amount of sleep with a 99% confidence interval, what is the margin of error? 1) 0.3549 2) 0.6546 3) 0.5839 4) 0.2356 5) 0.6527

  • Psychologist wants to determine if there is a linear relationship between the number of hours a...

    Psychologist wants to determine if there is a linear relationship between the number of hours a person goes without sleep and the number of mistakes he/she makes on a simple test. The following data is recorded. Hours without sleep 32 38 48 24 46 35 30 34 42 Number of Mistakes 6 8 13 5 7 6 5 8 12 Hours without sleep=x, Number of mistakes=y 1. Find the equation of regression line. Round slope and y-intercept to nearest thousandth.  ...

  • A study was done to look at the relationship between the number of lovers college students...

    A study was done to look at the relationship between the number of lovers college students have had in their lifetimes and their GPAs. The results of the survey are shown below. Lovers 0 2 6 6 1 5 2 0 5 GPA 3.4 3.6 2.9 2.2 3.7 3.1 3.6 3.2 2.8 x value   y value Find the correlation coefficient: r=r=    Round to 2 decimal places. The null and alternative hypotheses for correlation are: H0:H0: ? ρ r μ  == 0 H1:H1:...

  • bus A study was done to look at the relationship between number of lovers college students...

    bus A study was done to look at the relationship between number of lovers college students have had in their lifetimes and their GPAs. The results of the survey are shown below. ules es Lovers GPA 2 4 4 6 2.63.22.8 2.6 3.23.1 2.9 2.4 2.3 ale e 365 edia ia Gallery ary les Tuition ment edible a. Find the correlation coefficient: Round to 2 decimal places. b. The null and alternative hypotheses for correlation are: HO:?V0 H:? The p-value...

  • We are interested in the relationship between the compensation of Chief Executive Officers (CEO) ...

    We are interested in the relationship between the compensation of Chief Executive Officers (CEO) of firms and the return on equity of their respective firm, using the dataset below. The variable salary shows the annual salary of a CEO in thousands of dollars, so that y = 150 indicates a salary of $150,000. Similarly, the variable ROE represents the average return on equity (ROE)for the CEO’s firm for the previous three years. A ROE of 20 indicates an average return...

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
ADVERTISEMENT