learn maths with Eds
In the previous post, we were introduced to the normality test. This time, we will see some phenomena related to this test. Download the following file: (click here) In the file there is a variable named norm200. Using SPSS, displayRead More
In the previous post, we learned that the t statistic can be used in a one-sample hypothesis test for means, and the sample must come from a normally distributed population. Therefore, we usually perform a “normality test” to check whetherRead More
In a previous post, we explained how statistical hypothesis testing was conducted. In principle, there are four major steps, namely 1) formulate H0 and H1, 2) determine the level of significance, 3) determine the appropriate test statistic and the H0Read More
The word “hypothesis” is rarely found in everyday conversation. However, we often hear the words “idea” or “(educated) guess”. An idea is not necessarily correct. To find out whether the idea is right, we conduct an investigation. The same isRead More