Question: Refer to Exercise A17.9. Weight is a major factor that determines whether a person will need a hip or knee replacement and at what age.

Refer to Exercise A17.9. Weight is a major factor that determines whether a person will need a hip or knee replacement and at what age. To learn more about the topic, a medical researcher randomly sampled individuals who had hip replacement (code = 1) and knee replacement (code = 2) and one of the following categories:

1. Underweight

2. Normal range

3. Overweight but not obese

4. Obese

Do the data allow the researcher to conclude that weight and the joint needing replacement are related?

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