Data analysis ip3 | Statistics homework help

500-700 words 3 references 

Criminal Justice agencies often gather large quantities of variables to be used in descriptive analyses. That is, to help describe situations, populations, and so on. For instance, the Department of Corrections collects data on inmates. Variables often include crime type, race, gender, originating jurisdiction (where they were convicted), education level, and many others. 

These data are often captured categorically rather than numerically. For instance, education level might be captured by simply identifying the name of the highest grade an offender achieved, such as high school diploma or GED, Bachelor’s degree, Associates degree, and so forth. Similarly, race data are most often captured by recording the label of the race the offender belongs to, such as Caucasian, African American, Asian, Native American, Pacific Islander, and so on. These labels have no inherent numerical value because they are simply categories. Thus, they are categorical variables

You cannot use traditional statistical analysis to investigate relationships between categorical variables because they are not numbers. Instead, you would use nonparametric tests, such as the chi-square test of independence. You will use this test to investigate the data below. 

This assignment has 2 steps. 

Step 1: Watch both of the following videos regarding chi-square analysis: 

Step 2: Calculate chi-square using the data in the table below, this Chi Square Example Handout, and the Distribution Values Chart that go with this IP. 

Using the Chi-Square Example Handout and the Chi-Square Distribution Values Chart as guides to figure the calculations, calculate chi-square for the following data:

 

 Originating Jurisdiction              Caucasian               African American  

Denver County                                        16                                             3  

El Paso County                                           4                                              6  

Pueblo County                                           6                                             15 

Then, answer the following questions about your results:

  1. What is the column total for Caucasian?  
  2. What is the column total for African American?   
  3. What is the row total for Denver County?  
  4. What is the row total for El Paso County?   
  5. What is the row total for Pueblo County?  
  6. Are race and originating jurisdiction significantly dependent? How do you know?   
  7. What is the final chi-square value?  
  8. How many degrees of freedom are there for this chi-square table?   
  9. What is the value for the 0.05 significance level and 2 degrees of freedom on the Chi-Square Distribution Values Chart?   
  10. Do you reject or accept the null hypothesis that states, “Originating Jurisdiction and Race are not significantly dependent (they are independent)”?

For assistance with your assignment, please use your text, Web resources, and all course materials.

References

Khan Academy. (2017a). Contingency table chi-square test [Video file]. Retrieved from https://www.khanacademy.org/math/statistics-probability/inference-categorical-data-chi-square-tests/chi-square-tests-for-homogeneity-and-association-independence/v/contingency-table-chi-square-test

Khan Academy. (2017b). Filling out frequency table for independent events [Video file]. Retrieved from https://www.khanacademy.org/math/statistics-probability/inference-categorical-data-chi-square-tests/chi-square-tests-for-homogeneity-and-association-independence/v/frequency-table-independent-events







Place your order
(550 words)

Approximate price: $22

Calculate the price of your order

550 words
We'll send you the first draft for approval by September 11, 2018 at 10:52 AM
Total price:
$26
The price is based on these factors:
Academic level
Number of pages
Urgency
Basic features
  • Free title page and bibliography
  • Unlimited revisions
  • Plagiarism-free guarantee
  • Money-back guarantee
  • 24/7 support
On-demand options
  • Writer’s samples
  • Part-by-part delivery
  • Overnight delivery
  • Copies of used sources
  • Expert Proofreading
Paper format
  • 275 words per page
  • 12 pt Arial/Times New Roman
  • Double line spacing
  • Any citation style (APA, MLA, Chicago/Turabian, Harvard)

Our guarantees

Delivering a high-quality product at a reasonable price is not enough anymore.
That’s why we have developed 5 beneficial guarantees that will make your experience with our service enjoyable, easy, and safe.

Money-back guarantee

You have to be 100% sure of the quality of your product to give a money-back guarantee. This describes us perfectly. Make sure that this guarantee is totally transparent.

Read more

Zero-plagiarism guarantee

Each paper is composed from scratch, according to your instructions. It is then checked by our plagiarism-detection software. There is no gap where plagiarism could squeeze in.

Read more

Free-revision policy

Thanks to our free revisions, there is no way for you to be unsatisfied. We will work on your paper until you are completely happy with the result.

Read more

Privacy policy

Your email is safe, as we store it according to international data protection rules. Your bank details are secure, as we use only reliable payment systems.

Read more

Fair-cooperation guarantee

By sending us your money, you buy the service we provide. Check out our terms and conditions if you prefer business talks to be laid out in official language.

Read more

New Look, Same Us. Enjoy 10% OFF this October using the coupon code: essay10