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

3-month absolute deviation, For our class homework we prepared a 3-month fo...

For our class homework we prepared a 3-month forecast for sales (12 months with actual sales for each month). What or how do we figure the absolute deviation of the 3-month foreast

Bonds payable, Bonds payable The face worth of bonds issued and honorary. ...

Bonds payable The face worth of bonds issued and honorary. In the case of zero-coupon bonds, however, and the only and the accreted value of the tie is reported as bonds owed on t

Profit and supply functions, Derive the profit function P (p) and the suppl...

Derive the profit function P (p) and the supply function (or correspondence) y (p)for the following three Single-output technologies, whose production functions f (z) are:

SAMPLING mETHOD, A toothpaste company wants to know if its new product incr...

A toothpaste company wants to know if its new product increases the length of time in between dentist visits for its users. The company sets a target of 180 days to determine if it

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

Angular histogram, Angular Histogram A method or technique for displayin...

Angular Histogram A method or technique for displaying the circular data, which involves the wrapping of the usual histogram around a circle. Each bar in the histogram is center

Change in the performance of the lamps between the dates, Q.2. (ii) A compa...

Q.2. (ii) A company making lamps has drawn a sample from its production line and measured the light output from each. The results, in microamps, are as follows: 9.1 9.8 9.5

#title.- historigram, #question.differentiate between historigram and histo...

#question.differentiate between historigram and histogram.

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