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What is the correct answer for the following:d13

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What is the correct answer for the following:d13.XYsquare root of SS X SS Y A) Sample 1B) Sample 2

Suppose a correlation is computed in each of two samples. If the value of SS is the same in each sample, and the the product

is larger in Sample 1, then in which sample will the value of the correlation coefficient be larger?

C) None; the correlation coefficient will be the same in both samples.

D) There is not enough information to answer this question.

 

 

d14. A researcher measures the correlation between gender and student aptitude scores from 0 to 100 among 20 participants. If the point biserial correlation coefficient is 0.49, then what is the decision for this correlation test at 0.05 level of significance?

 

A) Retain the null hypothesis.

B) Reject the null hypothesis.

C) There is not enough information to answer this question.

 

d15. In a sample of 28 participants, suppose we conduct an analysis of regression with one

predictor variable. If F_obt = 4.28, then what is the decision for this test at a 0.05 level of

significance?

 

A) X significantly predicts Y.

B) X does not significantly predict Y.

C) There is not enough information to answer this question.