Test a Hypothesis Regarding Three or More Means Using One $\alpha = 0.05$

question 42

Multiple Choice

Test a Hypothesis Regarding Three or More Means Using One -Way ANOVA
-A medical researcher wishes to try three different techniques to lower cholesterol levels of patients with high cholesterol levels. The subjects are randomly selected and assigned to one of three groups. Group 1 is given medication, Group 2 is given an exercise program, and Group 3 is assigned a diet program. At the end of six weeks, each subject's cholesterol level is recorded. Find the critical value F-value to test the hypothesis that there is no difference among the means. Use $\alpha = 0.05$ .

• A) \(3.68\)
• B) \(19.43\)
• C) \(4.77\)
• D) \(39.43\)

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Definitions:

Dependent Variable

In research, the variable that is being measured or tested to see how it is influenced by changes in another variable (the independent variable).

Correlation Coefficients

Statistical measures that describe the size and direction of a relationship between two or more variables.

Double-Blind Procedure

A research experiment in which neither the participants nor the experimenters know who is receiving a particular treatment, minimizing the risk of bias.