rounding the result to two decimal places P Po Z Po 1 PO n 0 82 0 85 1 06 0 85 10 85 160 1 06 0 85 Step 7 A lower tail test is being performed so the area to the left of the test statistic z 1 06 is needed Use the standard normal table to find the p value for this test statistic rounding the result to four decimal places p value