A medical researcher tests 120 individuals who claim to be able to identify Parkinson's
disease through their sense of smell. Two of the subjects do significantly better (P-value <
0.01) than random guessing.
Is it proper to conclude that these two people can identify Parkinson's disease through their
sense of smell?
O
O
O
No, at the a= 0.01 level we would expect 1.2 subjects to do this well by chance alone.
No, the 120 individuals are not randomly selected.
Yes, the P-value is less than 0.01, so these two people must be able to smell Parkinson's disease.
Yes, the sample size is large and only 2 people passed the test, so they must be able to smell
Parkinson's disease.