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The data given below are final exam scores of 10 randomly chosen statistics student and number of hours they studied for exam.

Subject #

1

2

3

4

5

6

7

8

9

10

Hours, x

6

8

5

11

5

7

7

8

9

6

Scores, y

72

87

67

95

73

85

92

97

97

78

Using the r computed, test the significance of correlation coefficient using = 0.01 and the claim k = 0. Design the test using 7-steps hypothesis test. 

1.  H:  k = 0

Ha : k

2.  a = 0.01

3.  Find out the test statistic t.

4.  Find out the critical t0

5.  Define rejection region.

6.  Describe the statistical decision.

7.  Application interpretation.

Note: Pearson Correlation coefficient = r = 0.8465

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M920376

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