A Physical Therapist Is Interested in Whether People with Different

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 (X_S) and large-boned frame (X_L) .Patients all had similar injuries.She measures the number of days each person takes to progress to a predetermined point.Here is the data:
Based on the computed t value,what can you conclude?

A) People with small-boned frames took statistically significantly longer to progress in therapy than people with large-boned frames
B) People with large-boned frames took statistically significantly longer to progress in therapy than people with small-boned frames
C) There is no statistical difference between the small-boned and large-boned groups
D) Only that the small-boned and large-boned groups are different from each other statistically