Mathematics, 24.05.2020 02:59 franky2871
The Sleep Heart Health Study enrolled a randomly selected cohort of 6294 adults not treated for sleep-disordered breathing. The men and women 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 men and women differ in extent of their sleep-disordered breathing? Here is an incomplete Minitab 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 none mild moderate severe Total women 2167 821 265 99 3352 1826.18 957.03 387.18 63.605 19.335 38.555 men 1262 976 462 242 2942 1602.82 839.97 339.82 72.469 22.029 43.928 Total 3429 1797 727 341 6294
Reference: Ref 22-1 Under the null hypothesis of no relationship between sex and sleep-disordered breathing, the expected count of women with severe sleep-disordered breathing is Select one:
a. 99.0.
b. 181.6.
c. 786.8.
d. 838.0.
Answers: 3
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The Sleep Heart Health Study enrolled a randomly selected cohort of 6294 adults not treated for slee...
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