A researcher questions whether there is a correlation between the initial math-related anxiety and the final grade of the statistics course. She computes the Pearson's r in a class of 37 students and gets a value or r = .324. What should her statistical decision be at the alpha = .05 level? a. She should fail to reject the null hypothesis if this was either one-tailed or two-tailed test. b. She should fail to reject the null hypothesis if this was a one-tailed test but not if it was a two-tailed test. c. She should reject the null hypothesis if this was either a one-tailed or two-tailed test. d. She should reject the null hypothesis if this was a one-tailed test but not if it was a two-tailed test.
A researcher questions whether there is a
| a. |
She should fail to reject the null hypothesis if this was either one-tailed or two-tailed test. |
|
| b. |
She should fail to reject the null hypothesis if this was a one-tailed test but not if it was a two-tailed test. |
|
| c. |
She should reject the null hypothesis if this was either a one-tailed or two-tailed test. |
|
| d. |
She should reject the null hypothesis if this was a one-tailed test but not if it was a two-tailed test. |
From the given information, the required hypothesis will be given by as follows:
Test statistic will be given y as follows:
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