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To decide whether two variables of a population are associated, we usually need to resort to inferential methods such as the chi-square independence test. Why?

Short Answer

Expert verified

Since the data for the entire populaton is not usually variable, so we need to resort to inferential methods such as chi-square independent test.

Step by step solution

01

Step 1. Given Information.

Two variables of a population are associated.

02

Step 2. Explanation.

Since the data for the entire populaton is not usually variable, so we need to resort to inferential methods such as chi-square independent test.

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12.71 two and three

US. Hospitals. Refer to Exercise 12.50.


24 or fewer25-7475 or moreTotal
General260158635575403
Psychiatric24242471737
Chronic132226
Tuberculosis0224
Other25177208410
Total310201042606580

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a. 0.025to its right

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