Determine the coefficient of determination, Basic Statistics

Assignment Help:

1. A researcher was interested lowering the high school dropout level in his county. He measured the reading level of students entering middle school (based on a standard test) and their academic performance at the end of 10th grade (as measured by overall GPA).

Use the following data to:

A. Compute a correlation coefficient using Excel.

B. Create a scatter plot using Excel.

C. Determine the coefficient of determination. Explain what it tells you.

D. Explain in words what the correlation coefficient tells you about the relationship between reading level when entering middle school and 10th grade academic performance as measured by GPA.

E. What does it not tell you?

Student           Reading Level Score                  GPA

1                                  100                              3.0

2                                  110                              2.95

3                                  80                                2.00

4                                  75                                2.10

5                                  91                                2.00

6                                  124                              3.80

7                                  95                                2.40

8                                  82                                3.00

9                                  104                              3.10

10                                95                                2.20

11                                88                                2.24

12                                95                                3.00

13                                107                              3.45

14                                112                              3.11


Related Discussions:- Determine the coefficient of determination

Linear regression model, Q. Explain Linear Regression model? Ans. ...

Q. Explain Linear Regression model? Ans. Linear correlation measures the strength of a linear relationship, but not the exact numerical relationship. Linear regression, o

What do you mean by purchase return, What do you mean by Purchase Return? G...

What do you mean by Purchase Return? Give an example. Ans.  Sometime the goods an organization orders are not up to the mark and they are not supposed to keep or accept so th

Normal Approximation to Binomial Probability Distribution, A machine that f...

A machine that fills quart milk cartons is set up to average 32.2 oz per carton, with a standard deviation of 1.2 oz. Assume a normal distribution for all of the cartons filled, wh

Does the claim represent the null hypothesis or the alterna., A scientist c...

A scientist claims that the mean incubation period for the eggs of a species of birds is more than 46 days.

Management accounting, Defination,Advantages and Limitation, Proper Managem...

Defination,Advantages and Limitation, Proper Management of company,

Cost management, if sales is 6800 and variable costs are 2856 what is the v...

if sales is 6800 and variable costs are 2856 what is the variable cost percentage?

Normal distribution, In a sample of 120 workers in a factory, the mean and ...

In a sample of 120 workers in a factory, the mean and standard deviation of wages were Rs. 11.35 and Rs.3.03 respectively. Find the percentage of workers getting wages between Rs.9

General insurance accounts preparation and Regulation of inv, X Ltd had 100...

X Ltd had 100000 9% redeemable preference shares of Rs.100 each full paid. The company decided to redeem these pref. shares at par by issue of sufficient number of equity shares of

Galvanometer to voltameter, a millemeter ammeter of resistance 5m amp is to...

a millemeter ammeter of resistance 5m amp is to be used to measure a potential difference of 50volt.calculate the multiplier resistance

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd