The determination of a critical value depends on several factors including the chosen significance level (α), the type of test (one-tailed or two-tailed), and the distribution of the test statistic. For example, for a two-tailed test with a significance level of 0.05, the critical values would be the points that enclose the middle 95% of the distribution. These values can be found using statistical tables or software like R or SPSS.
