Homework answers / question archive / A researcher is interested in the relationship between history of smoking and pre-term birth in new mothers

A researcher is interested in the relationship between history of smoking and pre-term birth in new mothers

Statistics

Share With

A researcher is interested in the relationship between history of smoking and pre-term birth in new mothers. In order to test his hypothesis, the researcher divides former history of smoking into two groups, less than a pack a day and greater than a pack a day. The researcher decides to test these two groups against a control group of never smokers and compare their average gestational age in weeks. Suppose the following incomplete ANOVA table summarizes the preliminary analysis for the study.

                                Sum of Squares      df         Mean Square

Between Groups

Within Groups             1629.8

Total                           2349.04                137

A) Complete the ANOVA table above.

B) Calculate an F-statistic, and interpret your p-value.