22 Jun For this project, you will be gathering data fr
For this project, you will be gathering data from two groups in order to make inferences about the population from which these groups come from. After you gather your data, you will describe each variable separately using appropriate graphs and statistics. Then, you will choose methods utilized in this class to compare the groups. These methods may include the following:
Difference between Proportions using Two Independent Samples
Tests for Independence or Homogeneity
Goodness of Fit Test
Two-sample t-test for a difference of means
Paired t-test for a difference of means
Ratio of Variance using Two Independent samples
Sign Test for Two Medians
Mann-Whitney U Test
Step 1: Developing an idea
Often, one of the most difficult parts of this process is coming up with an idea! To make the project meaningful, try to think of something that you would be interested in learning more about. Just keep in mind that you will ultimately need to gather data from at least two distinct groups.
To help you brainstorm, consider the following idea…
Do college females have a higher grade point average than college males? Is there a greater variation for males than females?
Are there a greater proportion of blue M&Ms in a milk chocolate bag than in a peanut bag? Are the colors evenly distributed in either bag?
Do students on the soccer and lacrosse players practice the same number of hours each week?
Do college females and college males choose the same majors? Are there a greater proportion of female nursing students than males?
Do students sleep a different number of hours each night than faculty?
Do students with different professors share the same opinion about their statistics class? (Hate it/Tolerate It/Like It/Love It). How do their grades compare?
Do students with brown eyes study more hours than people with blue eyes? Are eye color distributed similarly by gender?
In the MLB, do players of one position score more RBIs on average than another?
You certainly do not have to use any of the ideas above, but they may give you a good starting point! Just keep in mind as you are trying to come up with an idea how you might go about getting data – and that you are collecting the right data for your topic. (Some confidence intervals and tests require numeric data; others categorical.)
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