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

Moving average, #questionhow does one calculate a four period centered movi...

#questionhow does one calculate a four period centered moving average given the sales per quarter for 3 years ..

Probability, 1) A certain brand of batteries has a lifetime that has a norm...

1) A certain brand of batteries has a lifetime that has a normal distribution with a mean of 3,800 hours and a standard deviation of 390 hours. b) What lifetime should the manufac

How to calculate mean?, Mean The mean is commonly the most significant ...

Mean The mean is commonly the most significant of all the numerical measurements used to describe data, and it is what the most people call an average. Example  Find

Cost accounting , is direct costing variable, relevant or prime costing

is direct costing variable, relevant or prime costing

Plural sense, explain all the nature of statistics

explain all the nature of statistics

Statistics, Question 1 A courier company conducted a brainstorming sessio...

Question 1 A courier company conducted a brainstorming session amongst drivers to ascertain the reasons why it was unable to deliver items to households, always right first time.

calculate the merger premium, Consider the following pre-merger informatio...

Consider the following pre-merger information concerning two firms, Mokhaba Manufacturers and Mabhida Merchants:  Data

Wae optic, can we polarize sunlight by the help of Polaroid disc?

can we polarize sunlight by the help of Polaroid disc?

Calculate a forecast using exponential smoothing, The Midwestern Manufactur...

The Midwestern Manufacturing Company (MMC) is a large manufacturer of electrical generators.  The firm has experienced demand for their generators as shown below: Year  Demand

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