Allison finds that the Pearson correlation coefficient for the relationship between number of pets owned and a person's IQ is +0.21. There are 25 people in her sample. Assuming an alpha level of 0.05 and a two-tailed test, what should she conclude? a. Reject the null hypothesis. The critical value is larger than the calculated value. b. Fail to reject the null hypothesis. The critical value is larger than the calculated value. c. Fail to reject the null hypothesis. The value is larger than the calculated value. d. Reject the null hypothesis. The calculated value is larger than the critical value.

Allison finds that the Pearson correlation coefficient for the relationship between number of pets owned and a person's IQ is +0.21. There are 25 people in her sample. Assuming an alpha level of 0.05 and a two-tailed test, what should she conclude? a. Reject the null hypothesis. The critical value is larger than the calculated value. b. Fail to reject the null hypothesis. The critical value is larger than the calculated value. c. Fail to reject the null hypothesis. The value is larger than the calculated value. d. Reject the null hypothesis. The calculated value is larger than the critical value.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter4: Equations Of Linear Functions

Section4.5: Correlation And Causation

Problem 24PFA

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100%

a. Reject the null hypothesis. The critical value is larger than the calculated value.

b. Fail to reject the null hypothesis. The critical value is larger than the calculated value.

c. Fail to reject the null hypothesis. The value is larger than the calculated value.

d. Reject the null hypothesis. The calculated value is larger than the critical value.

Definition Definition Statistical measure used to assess the strength and direction of relationships between two variables. Correlation coefficients range between -1 and 1. A coefficient value of 0 indicates that there is no relationship between the variables, whereas a -1 or 1 indicates that there is a perfect negative or positive correlation.

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