2. If the second sample is paired with.Test the difference between the two groups of samples When the sample data that will be used. There are two tests. This test is to test the differences in each pair as the khu related call. This test is to test the difference in a match (Paired Difference Tests).To determine whether a sample is used to test the related settlements, based on the.1. the comparison of the two methods with the same set of data, such as the difference of konoprom and training. Each pair of data coming from the same people. 2. compare two sets of data with the same properties, such as leading officials with the highest level of education and experience in working the same salary as the pair came to compare. 3. a comparison of two kinds of information from the same data source, such as a comparison of sales came from the store brand items, 2-20. 4. a comparison of two kinds of information that has come from the same time period, for example, sales of the two restaurants in the same month, each day. A test average of parametric data 2. In case of 2 samples.As a test, when the two groups have information can make a parametric test. That is, the value of the variance of the measurement interval or ratio, and there must be a normal distribution. Or approximately normally.The statistics used in the test is T-Test. For example, Researchers want to test whether training will give participants increased knowledge?Define statistical hypothesisH0: mean score before and after training, not different or H0: µd = 0.H1: average score before and after different training or H1: ≠ 0 µd.1. open the DATA13A.sav file.2. Select the Analyze menu-> Paired-Samples-> Compare Means T Test.
การแปล กรุณารอสักครู่..