1. The variable in a normal distribution can assume any value between

A) -3 and + 3

B) -4 and + 4

C) -1 and + 1

D) - and +

2. In hypothesis testing, what is the level of significance?

A) Risk of rejecting the null hypothesis when it is true

B) Symbolized by the Greek letter ""

C) Value between 0 and 1

D) Selected before a decision rule can be formulated

E) All of these are true