A research report states: The differences between public and private school seventh graders’ attitudes towardminority groupswas statistically significant at the

α = 0.05 level. This means that:

(1) It has been proven that the two groups are different.

(2) There is a probability of 0.05 that the attitudes of the two groups are different.

(3) There is a probability of 0.95 that the attitudes of the two groups are different.

(4) If there is no difference between the groups, the difference observed in the sample would occur by chance with probability of no more than 0.05.

(5) None of the above is correct. LO.1