A Research Article Reports That Clients Who Received Intervention a Had

Multiple Choice

A research article reports that clients who received Intervention A had a 20% recidivism rate, while clients who received Intervention B had a 30% recidivism rate. What can be inferred from these statistics?​

A) ​Intervention A is more effective than Intervention B.
B) ​The difference in recidivism rates may have been due to chance.
C) ​We risk a Type II error if we conclude that Intervention A is more effective than Intervention B.
D) ​We risk a Type I error if we conclude that the difference in recidivism rates may have been due to chance.