Question

In: Statistics and Probability

Obs Income GPA 1 1.51 3.18 2 3.31 2.85 3 1.81 1.84 4 2.42 4.61 5...

Obs

Income

GPA

1

1.51

3.18

2

3.31

2.85

3

1.81

1.84

4

2.42

4.61

5

1.72

3.18

6

1.63

3.98

7

0.98

1.35

8

1.04

2.78

9

1.55

3.74

10

2.75

2.87

  1. Calculate Pearson’s r correlation coefficient?
  1. What does the result you obtain say? (10points)

Now calculate whether the result obtained is statistically significant

  1. State the Null and Alternative hypotheses? (5 points)

  1. Establish your decision criteria and determine t critical (df = N-2).
  1. Determine t calculated?

6. Are the results significant at the 5% level and explain what it means in terms of the Null hypothesis? (20 points)

Solutions

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