A sample of 220 patients of a family medicine practice was surveyed two weeks after their...

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A sample of 220 patients of a family medicine practice wassurveyed two weeks after their doctor's visit to ask them whetherthe symptoms that prompted their visit improved, and whether theycomplied with the physician's treatment plan. The following tablecontains the results.

Symptoms improved
Symptoms did not improve
Complied
100
40
Did not comply
30
50
â€‹
Is there a relationship between the two variables?
a.
There is no relationship between the variables, because theprobabilities sum up to 1.
b.
There is a relationship between the variables, as the columnpercentages are not the same.
c.
There is a relationship between the variables because the numberof patients that improved and complied with the treatment plan isgreater than the number that complied and did not improve.
d.
We need additional information to determine if there is arelationship between those two variables.

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4.4 Ratings (943 Votes)

Given table data is as below MATRIX col1 col2 TOTALS row 1 100 40 140 row 2 30 50 80 TOTALS 130 90 N 220 calculation formula for E table matrix ETABLE col1 col2 row 1 row1col1N row1col2N row 2 row2col1N row2col2N expected frequecies calculated by applying E table matrix formulae ETABLE See Answer

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	Symptoms improved	Symptoms did not improve
Complied	100	40
Did not comply	30	50

	a.	There is no relationship between the variables, because theprobabilities sum up to 1.
	b.	There is a relationship between the variables, as the columnpercentages are not the same.
	c.	There is a relationship between the variables because the numberof patients that improved and complied with the treatment plan isgreater than the number that complied and did not improve.
	d.	We need additional information to determine if there is arelationship between those two variables.