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A veterinarian in Texas surveys a random sample of female horses from ranches in the entire...

A veterinarian in Texas surveys a random sample of female horses from ranches in the entire state. The veterinarian collects data about age, breed, type of feed, and hours ridden per week. Which pair of variables can the veterinarian use to conduct a chi-square test of independence?

A. age and hours ridden per week

B. age and breed

C. type of feed and breed

D. type of feed and hours ridden per week

Math   Statistics-And-Probability   
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Answer #1

Here there are four variables Age,breed,type of feed,Hours ridden per week

Age and Hours ridden per week are quantitative or numerical variables as both the variables can be measured and can take infinite values

Breed and Type of feed are categorical or qualitative variables as they can be categorised into their respective categories only

Chi-square test of indpendence is applied for categorical or qualitative variables only.

Hence pair of variables veterinarian use to conduct a chi-square test of independence are Breed and Type of feed

So Answer is Option C

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