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For the following problems, construct a scatter plot using excel. After the plotis drawn, analyze it to determine which type of relationship, if any,exists. Enter
- For the following problems, construct a scatter plot using excel. After the plotis drawn, analyze it to determine which type of relationship, if any,exists.
Enter data in the excel worksheet (let's say in column A you enter x data, in B you enter y data) Select Data --> CLICK Insert --> Click Scatter --> Click first case that contains unconnected points -->release the mouse
For the regression line, double click the created chart --> on top you should seeChart Layouts, the 3rd one contains a line --> click on it
If you choose layout 9, you get the regression equation that can give you more detailed information
- For each of the following problems compute the correlation coefficient r, r2, (show the intermediary steps) and summarize/explain theresults.
PROBLEM 1:The data below shows the reading (x) and math scores (y) of a number of students.
Reading Scores | Math Scores |
1 | 4 |
2 | 5 |
3 | 8 |
3 | 6 |
4 | 7 |
5 | 7 |
6 | 8 |
7 | 10 |
7 | 9 |
8 | 10 |
8 | 9 |
9 | 10 |
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