After Experiencing a Concussion,an Athlete Can Return to Play in the Same

question 33

Multiple Choice

After experiencing a concussion,an athlete can return to play in the same game

• A) under no circumstances.
• B) only if this is his or her very first concussion.
• C) if unconsciousness lasted less than 15 minutes.
• D) after as little as 15 minutes,if unconsciousness did not occur.

---

Definitions:

Null Hypothesis

A statistical hypothesis which proposes no significant difference or effect, used as a default assumption until evidence suggests otherwise.

Alpha Level

The probability threshold that determines the critical value for rejecting the null hypothesis in hypothesis testing, commonly set at 0.05 or 5%.

Rejection Region

In hypothesis testing, the range of values for which the null hypothesis is considered unlikely and thus rejected.

Level Of Significance

A threshold in hypothesis testing that determines the probability at which the null hypothesis is rejected, commonly denoted by alpha (α).