Math - Mean, Median, and Mode
Statistics Experimental Design Project
(You will be measuring a small part of the population you select, and then making a general statement about how the entire population will behave.)
Choose a topic. (For example, you could choose People and TV; or People and video games; or People and exercise, etc.)
Ask a question about the population you selected.
If the population you selected is “people”, you could ask: “What is the average number of hours people watch TV every week?”
(Just ensure your question can be answered using numerical sampling techniques.)
State your hypothesis.
(Your hypothesis is an assumption about how the entire population behaves. Your assumption may or may not be true. You will determine the accuracy of your hypothesis as you sample the population behavior and complete your calculations.
Your hypothesis could be something like: Adults 21 years and over watch an average of 2.5 hours of TV per day.
You will be using a Null Hypothesis, which assumes that every sample observation you record is purely the result of chance.)
Describe the Methodology of your Sampling Design? (You can gather your data at work, on the phone, or via some other method.)
Which of the four sampling techniques best describes your design?
Randomly sample the behavior of at least fifteen people with respect to the question you asked. (Record your data in a simple table or chart; study the examples from Section 12-3.)
Break your sample into classes or groups, such as males/females, or ages, or time of day, etc.
Calculate the mean, median, and mode for your data as a whole.
Now calculate the mean, median, and mode of each of your classes or groups.
Indicate which measure of central tendency best describes your data and why.