A twotailed test is conducted at the 5 significance level Wh

A two-tailed test is conducted at the 5% significance level. Which of the z-scores below is the smallest one that leads to rejection of the null hypothesis?

Solution

A two-tailed test is conducted at the 5% significance level. The z scores which are less than -1.96 or greater than +1.96 will lead to the rejection of the null hypothesis.