We are interested in knowing if the following frequency distribution is normally distributed. The population mean and standard deviation of the data are 600 and 160, respectively. 
To test the hypothesis that the frequency distribution is normally distributed, the value of the chi-square test statistic is 12.19. What is the decision regarding the null hypothesis tested at the .05 level of significance?
Definitions:
Rorschach Inkblot Test
A psychological test in which subjects' perceptions of inkblots are recorded and then analyzed using psychological interpretation, complex algorithms, or both.
Clinicians
Healthcare professionals involved in the diagnosis and treatment of patients.
Responses
Reactions or actions in answer to a stimulus or situation.
Posttraumatic Stress Disorder
A mental health condition triggered by experiencing or witnessing a terrifying event, characterized by flashbacks, nightmares, and severe anxiety.
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