We Are Interested in Knowing If the Following Frequency Distribution

question 20

Essay

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:

Lymphocytes

A type of white blood cell that plays a crucial role in the immune system to fight off infections and diseases.

Epinephrine

A hormone and neurotransmitter also known as adrenaline that increases heart rate, muscle strength, blood pressure, and sugar metabolism.

Self-Attacking Disease

Autoimmune diseases where the body's immune system attacks its own tissues, mistaking them for foreign invaders.

Carcinogens

Substances or agents that are known to cause cancer by modifying cellular metabolism or damaging DNA directly in cells.