the proportion of college football players who have had at least one concussion is estimated to be 34% in…

the proportion of college football players who have had at least one concussion is estimated to be 34% in the united states. we wanted to know if football players at our university were less likely to have suffered a concussion, so we surveyed a random sample of 100 past and present football players at our university. is this survey valid or not valid for testing the hypothesis that the proportion of college football players at our university with at least one concussion is less than the national average? a. valid b. not valid

the proportion of college football players who have had at least one concussion is estimated to be 34% in the united states. we wanted to know if football players at our university were less likely to have suffered a concussion, so we surveyed a random sample of 100 past and present football players at our university. is this survey valid or not valid for testing the hypothesis that the proportion of college football players at our university with at least one concussion is less than the national average? a. valid b. not valid

Answer

Brief Explanations:

The sample is a random sample of past and present football players at the university. Random sampling helps to reduce bias and makes the sample representative of the population of interest (football players at the university). This allows for valid hypothesis - testing about the proportion of players with concussions at the university compared to the national average.

Answer:

A. Valid