# Discussion 1: Week Five Discussion - Statistics

by Jacob
(Virginia)

Measures of Central Tendency - real life situation.

• Identify three most commonly used statistical measures that quantify central tendency.

• Select a topic which you will use to demonstrate all three statistical properties.

a) Pose a question about that topic which can be answered numerically, using statistics. For example, “What is the average number of hours people watch TV every week?”

b) Write a hypothesis of what you expect your research to reveal. For example, your hypothesis could be something like this: Adults 21 years and over watch an average of 2.5 hours of TV per day

c) Develop a Sampling Design which shows how you will gather data? (You can gather your data at work, on the phone, or via some other method.)

* Describe which of the four sampling techniques best describes your design?

d) Explain your “Methodology”: the method you will use to gather your data.

• Sample at least fifteen people and record their data in a simple table or chart.

a) Separate your sample into classes or groups, such as males/females, or ages, or time of day, etc.

b) Calculate the mean, median, and mode for your data as a whole.

c) Calculate the mean, median, and mode of each of your classes or groups.

d) Which measure of central tendency best describes your data.

e) Comparative Analysis: compare your results for each class or group, and point out any interesting results or unusual outcomes between the classes or groups.