**Week3Assignment

# Birth weight infants dependent variable breathing

• Homework Help
• 6
• 93% (15) 14 out of 15 people found this document helpful

This preview shows page 3 - 5 out of 6 pages.

birth weight infants; dependent variable: breathing rate (in breaths per minute). b. Cochran’s Q Test Independent variable: time of measurement of same patient (before, during, and after surgery); dependent variable: heart rate. c. Friedman Test Independent variable: time of measurement (before, during, and after intervention); dependent variable: did vs did not exercise regularly. d. Kruskall Wallis Test Independent variable: infertility treatment A vs infertility treatment B vs control condition; dependent variable: did vs did not become pregnant. 8. Is the value of the chi-square statistically significant at the 0.05 level? Any reason to use a correction to the chi-square test here given your expected counts?

Subscribe to view the full document.

The chi-square statistic is signifi - cant at the 0.05 level. There is no reason to use a correction to the chi-square test because all ex- pected counts are > than 10. 9. Write a paragraph summarizing the results of the analysis in Exercise 8. What can you conclude about smoking and depression (“Feeling Down”) in this sam- ple? The value statistically significant because it is greater than the value critical value of 5.991 with an alpha level of 0.05. Because of this, we reject the null hypothesis and we also have enough evidence to support the alterna- tive hypothesis.
• Spring '17
• Statistics, Statistical tests, Non-parametric statistics, chi-square statistic, knee replacement treatment

{[ snackBarMessage ]}

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern