What is the Anderson-Darling test for normality? Sometimes we want to know whether our sample data looks as though it is drawn from the normal distribution. To determine that, we perform a normality test. There are many normality tests. This test is named after...

What is D’Agostino’s K-squared test for normality? Sometimes we want to know whether our sample data looks as though it is drawn from the normal distribution. To determine that, we perform a normality test. There are many normality tests. D’Agostino’s K-squared test...

What is the Shapiro-Wilk test for normality? Sometimes we want to know whether our sample data looks as though it is drawn from the normal distribution. To determine that, we perform a normality test. There are many normality tests. This test is good for thousands of...

In one of our previous articles, we discussed how to calculate the test statistic in a chi-square test of independence or goodness-of-fit test. We also discussed that the test statistic in a chi-square test follows the chi-square distribution. So, how can we calculate...

In one of our previous articles, we discussed how to calculate the test statistic in a chi-square test of independence or goodness-of-fit test. We also discussed that the test statistic in a chi-square test follows the chi-square distribution. So, how can we calculate...