Torn ACL Having at least one 15-minute warm-up session per week resulted in a drastic
Chapter 12, Problem 17(choose chapter or problem)
Torn ACL Having at least one 15-minute warm-up session per week resulted in a drastic reduction in tears in the anterior cruciate ligament (ACL). In a study involving about 4500 adolescent girls soccer players in Sweden, one group was randomly assigned to warm up with a neuromuscular exercise session. This group had 64% fewer ACL tears than the control group. a) Is this an experiment or an observational study? Explain why. b) Identify the treatments in this study. What is the response variable? c) Give one statistical advantage of using only Swedish girls who played soccer in this study. d) Give one statistical disadvantage of using only Swedish girls who played soccer in this study.
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