how to calculate standard error from p value?
['1 calculate the test statistic for a normal distribution test, z, from P3: z = −0.862 + √[0.743 − 2.404×log(P)]', '2 calculate the standard error: SE = Est/z (ignoring minus signs)', '3 calculate the 95% CI: Est –1.96×SE to Est + 1.96×SE.']