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Statistics for people who (think they) hate statistics 4th Edition Using the data in Chapter 15...

Statistics for people who (think they) hate statistics 4th Edition

Using the data in Chapter 15 Data Set 1 to answer the questions below. Do the analysis manually or using the Data Analysis tools in excel.

a. Compute the correlation between motivation and GPA.

b. Test for the significance of the correlation coefficient at the .05 level using a two-tailed test.

c. The more highly you are motivated, the more you will study- true or false? which did you select and why?

Pt. 2: Using the same data, develop the regression equation for GPA based on motivation. Chapter 15, Data Set 1, page 448.

Motivation GPA
1 3.4
6 3.4
2 2.5
7 3.1
5 2.8
4 2.6
3 2.1
1 1.6
8 3.1
6 2.6
5 3.2
6 3.1
5 3.2
5 2.7
6 2.8
6 2.6
7 2.5
7 2.8
2 1.8
9 3.7
8 3.1
8 2.5
7 2.4
6 2.1
9 4
7 3.9
8 3.1
7 3.3
8 3
9 2
0 0
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Answer #1

(a) Correlation between motivation and GPA is F 0.434022643-0.434 (three decimal places) Motivation GPA Motivation GPA 0.4340The regression equation for GPA based on motivation SUMMARY OUTPUT Regression Statistics Multiple R R Square Adjusted R Squar

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