QUESTION 29

1. The Sleep Heart Health Study enrolled a randomly selected cohort of 6294 adults not treated for sleep-disordered breathing. The males and females in the study were classified into four groups depending on the extent of their sleep-disordered breathing (none, mild, moderate, or severe). Is there significant evidence that males and females differ in extent of their sleep-disordered breathing? Here is anincompleteMinitab output to help you answer this question.

Chi-Square Test:

Expected counts are printed below observed counts

Chi-Square contributions are printed below expected counts

nonemildmoderatesevereTotal

women2167821265993352

1826.18957.03387.18

63.60519.33538.555

men12629764622422942

1602.82839.97339.82

72.46922.02943.928

Total342917977273416294

Completing the test with appropriate technology, under the null hypothesis of no relationship, what is the contribution to the chi-square statistic (i.e., chi-square component) that comes from the females with severe sleep-disordered breathing?

0.533

10.071

37.575

181.606