Sign Test Table Of Significance. The third table will show the test statistics table for sign test. This table shows the value of z statistic and the probability value.
Based on this probability value we can make our decision about the hypothesis. If the sample size is large enough a formula for a z statistic can be used and it is. For example if the probability value is less than the significance level at 05 null hypothesis will be rejected.
Z x 0.
Given pairs of observations such as weight pre and post treatment for each subject the sign test determines if one member of the pair such as pre treatment tends to be greater than or less than the other member of the pair. The sign test is a statistical method to test for consistent differences between pairs of observations such as the weight of subjects before and after treatment. Use a 0 01 significance level to test the claim that the ysort method is effective in increasing the likelihood of boy. Claims about the median of a single population to use the sign test for a population median if the entry is below the median assign it a signs.
