Statistics Sign Test Table. If n 25 use x. If n 25 use table a 2.
The sign test for a population median can be left tailed right tailed or two tailed. If n 25 use x. For example if the probability value is less than the significance level at 05 null hypothesis will be rejected.
Spss statistics output of the sign test.
For george s example we need to use the 2nd table as his test result corresponds to a positive z score of 0 67. Spss statistics will generate quite a few tables of output for a sign test. Add a fourth column indicating the sign of the number in column 3. This table shows the value of z statistic and the probability value.
