Preliminary Data Analyses Indicate That It Is Reasonable to Consider $\text { Use } \alpha = 0.05$

question 57

Essay

Preliminary data analyses indicate that it is reasonable to consider the assumptions for one-way ANOVA satisfied.Perform the required hypothesis test using the critical-value approach.
-A medical researcher wishes to try three different techniques to lower blood pressure of patients with high blood pressure. 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 blood pressure is recorded. Test the claim that there is no difference among the means. $\text { Use } \alpha = 0.05$

---

Definitions:

Eye Movement Desensitization and Reprocessing

A psychotherapy technique that helps individuals process and recover from trauma and PTSD by stimulating rapid eye movements.

Exposure Therapy

A behavior-focused intervention in which fearful persons are repeatedly exposed to the objects or situations they dread.

Posttraumatic Stress Disorder

A mental disorder induced by the trauma of experiencing or the act of witnessing a fear-provoking event, manifesting through continuous nightmares, flashbacks, and intense anxiety sensations.

Combat Experience

Exposure to warfare or battle conditions, often discussed in relation to its psychological impact on military personnel.