cenario 5.  A researcher is interested in examining whether cortisol levels are influenced by watching a scary movie. She measures participants cortisol levels before and after watching a scary movie, she expects that cortisol will increase.  What is the most appropriate test statistic to use to test the hypothesis in scenario 5? Correlation Coefficient Regression Analysis One-way ANOVA P-test T-test for the significance of the correlation coefficient Independent samples t-Test Z-score F-test Dependent samples t-Test One sample Z-test   What is the null hypothesis for scenario 5

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 23PFA
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Scenario 5.  A researcher is interested in examining whether cortisol levels are influenced by watching a scary movie. She measures participants cortisol levels before and after watching a scary movie, she expects that cortisol will increase. 

What is the most appropriate test statistic to use to test the hypothesis in scenario 5?

Correlation Coefficient

Regression Analysis

One-way ANOVA

P-test

T-test for the significance of the correlation coefficient

Independent samples t-Test

Z-score

F-test

Dependent samples t-Test

One sample Z-test

 

What is the null hypothesis for scenario 5?

 

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