Answer to Question #336820 in Statistics and Probability for Rival

Question

If the confidence interval is given as 90%, 93%, 96% and 98%. Find the value of z. Round the answer to the two decimal places.

Answer 1

The critical value for $\alpha = 0.1$ is $z_c = z_{1-\alpha/2} = 1.64.$

The critical value for $\alpha = 0.07$ is $z_c = z_{1-\alpha/2} = 1.81.$

The critical value for $\alpha = 0.04$ is $z_c = z_{1-\alpha/2} = 2.05.$

The critical value for $\alpha = 0.02$ is $z_c = z_{1-\alpha/2} = 2.33.$