Given the of the zdistribution the pvalue for a twotailed t

Given the ______ of the z-distribution, the p-value for a two-tailed test is twice that of the p-value for a one-tailed test.

Solution

Given the table of the z distribution the p value for a two tailed test is twice that of the pvalue for one tailed test.

(Normal distribution is symmetrical about the mean, and hence area between mean and c would be the same as

area between -c and 0)