Where’s the blunder? Write a sentence or two to explain the blunder in each of the following statements.

(a) Austin says that a result that is signifi cant at the a 5 0.05 level must also be signifi cant at the a 5 0.01 level.

(b) Asked to explain the meaning of “statistically signifi cant at the a 5 0.05 level,”

Carla says: “Th is means that the probability that the null hypothesis is true is less than 0.05.”