This project provides you with an opportunity to pull together much of the statistics of this course and apply it to a topic of interest to you. You will begin by obtaining a data set. Data will need to be such that analysis can be done using the tools of this course. You will take the first steps towards applying Statistics to real-life situations. Consider subjects you are interested in or topics that you are curious about.
Following is a collection of data sets from which you may choose for your project. You may select a data set not in this list or conduct an experiment to develop your own data set. Please obtain instructor approval for data sets not in this list so that your instructor can confirm that you will be able to address all required components of the project with your data set. Additional sources for data are included in the “Helpful Hints” section that follows the Instructions. MY SUBJECT IS: CRIMINAL JUSTICE; NUMBER OF LAW ENFORCEMENT OFFICERS BY STATE. In 2020, data was collected regarding the number of law enforcement professionals employed in each of the 50 US states. Thirty states were selected at random. The number of law enforcement professionals employed in these 30 states is shown below.
17,924 |
5,748 |
3,302 |
26,416 |
3,368 |
27,250 |
19,995 |
98,256 |
29,794 |
116,036 |
48,546 |
13,321 |
8,281 |
20,920 |
8,810 |
3,035 |
5,410 |
68,356 |
11,184 |
17,319 |
17,411 |
3,085 |
3,499 |
16,554 |
8,618 |
3,772 |
3,378 |
15,721 |
4,079 |
2,729 |
Source: FBI. (May 8, 2023). Number of law enforcement employees in the United States in 2022, by state [Graph]. In Statista. Retrieved October 12, 2023, from https://libproxy.ecpi.edu:2084/statistics/970385/n....
Instructions
For this project, you will need to outline the following details:
- Sampling: A careful description of how the sample was obtained. Be very specific! Include sample sizes, the population of interest, and a description of the sample. Also, include a copy of the survey if you used one.
- Select a topic with a numeric variable (these are numbers that can be meaningfully used to create summary statistics). You are encouraged to look at sports data, real estate data, and criminal statistic data.
- Find ACTUAL data (see links below to help you look). Include your formal references in APA format to the data you have decided to use.
- Ensure that you have a sample size of 20 (MINIMUM) as 30 would be preferred. It can be larger and that's great, but 20 is the minimum.
- Descriptive Statistics: Any descriptive statistics relevant to your project should be included.
- You are required to give the mean, mode, median, and standard deviation of your data set. You may include other calculations if they support your work.
- At least two graphs (such as box plots, scatter plots, stem-and-leaf, histograms, etc.) should be part of your project. The graphs can be a way to summarize descriptive statistics.
- Hypothesis:
- From your data, what do you expect to see/happen?
- What are you hoping to learn?
- Working references in APA format. Project Submission A Rubric
Project Submission A Rubric Criteria Ratings Pts This criterion is linked to a Learning OutcomeSample and Target Population 20 ptsMasteryA thorough description of the sample and target population is provided. The project includes sample size, the population of interest, and description of the sample. If a survey was used, it is provided. 15 ptsCompetentA description of the sample and target population is provided. The description may be limited and/or lacking components. If a survey was used, it is provided. 8 ptsDeveloping CompetencyA description of the sample OR target population is provided. The description may be limited and/or lacking components. If a survey was used it may or may not be present. 0 ptsMissingNo direct discussion about the sample, population, and sampling method. 20 pts This criterion is linked to a Learning OutcomeData 10 ptsMasteryA data set and summary count is provided. 5 ptsCompetentA data set OR summary count is provided. 0 ptsMissingData set not included. 10 pts This criterion is linked to a Learning OutcomeMean, Median, Mode, and Standard Deviation 30 ptsMasteryCorrectly calculated mean, mode, median, and standard deviation with accompanying work or calculations. 22 ptsCompetentThree of the four components are correctly calculated (mean, median, mode, and standard deviation). 15 ptsDeveloping CompetencyTwo of the four components are correctly calculated (mean, median, mode, and standard deviation). 7 ptsBeginning UnderstandingOne of the four components are correctly calculated (mean, median, mode, and standard deviation). 0 ptsMissingNo mention of mean, median, mode, and standard deviation. 30 pts This criterion is linked to a Learning OutcomePictorial Representations 20 ptsMasteryTwo correct graphs summarizing descriptive statistic that are clear in their presentation. 10 ptsCompetentUnclear graphs summarizing descriptive statistics, or one missing. 0 ptsMissingBoth graphs are not present. 20 pts This criterion is linked to a Learning OutcomeCraftsmanship 10 ptsMasteryWorking Reference(s) using APA format done correctly and with excellent organization/presentation. 8 ptsCompetentWorking Reference(s) using APA format done with minimal errors. 5 ptsBeginning UnderstandingWorking Reference(s) with major mistakes, or weak organization. 0 ptsMissingNo references or poor organization 10 pts This criterion is linked to a Learning OutcomeHypothesis 10 ptsMasteryA reasonable hypothesis was developed with an explanation for what they hope to learn from the project. 5 ptsDeveloping CompetencyA fairly reasonable hypothesis was developed with an explanation for what they hope to learn from the project. The hypothesis may be lacking detail and/or justification. 0 ptsMissingNo hypothesis was provided 10 pts Total Points: 100