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blahhumbug blahhumbug
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6 years ago
A study investigated the association between being a parent and suffering from anxiety among women aged 30-50. A researcher randomly selected 832 women with children and 518 women without children and asked each woman whether she suffered from anxiety sufficient to cause insomnia at least once a week. The results are summarized in the contingency table below. Identify the two samples and determine whether they are dependent or independent.

HAVE CHILDREN: Anxiety 160; No anxiety 672, Total 832
DO NOT HAVE CHILDREN: Anxiety 243, No anxiety 1107, total 1350


a. The two samples are the 243 women suffering from anxiety and the 1107 women who do not suffer from anxiety. The two samples are independent.


b. The two samples are the 832 women with children and the 518 women without children. The two samples are dependent.


c. The two samples are the 243 women suffering from anxiety and the 1107 women who do not suffer from anxiety. The two samples are dependent.


d. The two samples are the 832 women with children and the 518 women without children. The two samples are independent.
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