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A Physical Therapist Is Interested in Whether People with Different

Question 137

Multiple Choice

A physical therapist is interested in whether people with different bone structures will be affected differently by her new therapy program.She randomly chooses two groups of patients based on bone type: small-boned frame (XS) and large-boned frame (XL) .Patients all had similar injuries.She measures the number of days each person takes to progress to a predetermined point.Here is the data: A physical therapist is interested in whether people with different bone structures will be affected differently by her new therapy program.She randomly chooses two groups of patients based on bone type: small-boned frame (X<sub>S</sub>) and large-boned frame (X<sub>L</sub>) .Patients all had similar injuries.She measures the number of days each person takes to progress to a predetermined point.Here is the data: What is the pooled variance estimate? A) 0.70 B) 1.13 C) 2.13 D) 4.54
What is the pooled variance estimate?


A) 0.70
B) 1.13
C) 2.13
D) 4.54

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