# 7.5 Synthesis Practice Problems

data entry multi-part question and need an explanation and answer to help me learn.

Instructions
Practice problems
Chapter 10: Nonparametric Tests, from “Essential of Biostatics in Public Health” textbook by Lisa Sullivan.
Problems 1, 2, 3, and 4 on Page 241.
(third edition users please refer to page 246)
Please answer all questions using SPSS, including outputs and conclusions for each question.
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Instructions:
You are encouraged to build data files yourself. If you have problems doing that, here are some examples: Problem 1 and 2 Download Problem 1 and 2, Problem 3 Download Problem 3, Problem 4Download Problem 4
You can still use SPSS on your computer if you installed it in the fall, but you will need to update the license key. Follow the instructions in the course announcement. Otherwise, you can use SPSS on the USF apps portal, go to https://apps.usf.edu Links to an external site., sign in using your NetID credentials and following onsite instructions.
Here are the specific questions you will answer in this quiz:
1. Using a Sign test at a 5% level of significance, what is the p-value obtained from this test?
2. Uses Wilcoxon Signed Rank test at a 5% level of significance.
2a. What is the value of the Wilcoxon Signed Rank test statistic (z)?
2b. What is the p-value obtained from this test?
2c. Did the median number of sick days taken increase, decrease, or stay the same pre- to post-program?
3. Uses a Mann-Whitney U-test at a 5% level of significance.
3a. What is the median baby birth weight for mothers who did smoke during pregnancy?
3b. What is the median baby birth weight for mothers who did not smoke during pregnancy?
3c. What is the value of the Mann-Whitney U-test statistic?
3d. What is the p-value obtained from this test?
4. Uses a Kruskal-Wallis test at a 5% level of significance.
4a. What is the median number of injuries on school properties?
4b. What is the median number of injuries at day-care centers?
4c. What is the median number of injuries in residential neighborhoods?
4d. What is the value of the Kruskal-Wallis test statistic?
4e. What is the value for the number of degrees of freedom?
4f. What is the p-value obtained from this test?
Requirements: Thorough and clear