**Problem 10.1:** Researchers used multiple linear regression to test the relationship between FEV (forced expiratory volume) and sex. Next they retested the relationship between FEV and sex after adding the variable age. Open the following to see the SPSS output:

Week 10 First Problem Output

Interpret the results by answering the following questions:

- Was the relationship between sex and FEV significant?
- What percentage of the variability of FEV was explained by sex? (Use the coefficient of determination.)
- Was the relationship of age and FEV significant?
- Was age a confounder of the relationship between sex and FEV?
- What percentage of the variability of FEV was explained by sex and age? (use coefficient of determination)

Interpret the results by answering the following questions:

- Was the relationship between case/control and survival significant?
- Was the relationship of sepsis and survival significant?
- Was sepsis a confounder of the relationship between case/control and survival?

Subject | Mathematics |

Due By (Pacific Time) | 02/09/2014 03:30 pm |

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