1. Why is it inadequate to choose a one-tailed test on the basis that we expect the outcome to be in that direction?

2. In a two-tailed test conducted at the .01 level of significance, we have rejected the null hypothesis. Say whether each of the following is true or false.

(a) The probability that the null hypothesis is false is .99.

(b) The probability that we made the wrong decision on the null is .01.

(c) If we always use the .01 level of significance in our hypothesis testing, over the long run we will make a wrong decision on the null hypothesis 1% of the time.

(d) If we always use the .01 level of significance, over the long run we will make the wrong decision on the null hypothesis on 1% of those occasions when we reject the null.

(e) If we always use the .01 level of significance, over the long run we will make a wrong decision on the null hypothesis on 1% of those occasions when we retain the null.

(f) If we always use the .01 level of significance, over the long run we will make a wrong decision on the null hypothesis on 1% of those occasions when the null is true.