Mat 540 Statistical Concept of Research

Week 4 Discussion 1

Normal or Bell-Shaped Curve

Find a study where the distribution follows a normal or bell-shaped curve. An example of a normal distribution or bell-shaped curve, called “Heights of Red Pine Seedlings”, is located in the beginning of Chapter 6 in the book. Cite the source of the study you’ve selected, and explain why you think the distribution is bell shaped. For instance, if the study is about income, then the income may be low for a child and peak at age forty-five and then gradually drop.

Week 4 Discussion 2

Standardized Testing

Paul states that he scored in the 100th percentile on a given standardized test. Do you believe him? Why or why not?