Can I compare the medians of groups with different sample sizes?

Can I compare the medians of groups with different sample sizes?

You can perform the median test using SPSS. The Mann-Whitney test may be used to compare two sample data sets (of equal or unequal size) for equality, and uses the rank values rather than dichotomizing the scores into frequencies of cases above/below median as does Mood’s test.

How does sample size affect median?

Simply put, if the sample size is odd, the sample median is the middle value after putting the observations in ascending order. If the sample size is even, the sample median is the average of the two middle values.

How do you compare the median between two groups in SPSS?

In SPSS, we can compare the median between 2 or more independent groups by the following steps:

1. Open the dataset and identify the independent and dependent variables to use median test.
2. Now, go to analyze, non-parametric tests and independent samples.
3. Then you see the following dialog box.

What is the difference between the medians for the two data sets Quizizz?

What is the difference between the medians for the two data sets? Math has a higher median (center) and a wider spread.

Can a test be a test of the difference in medians?

Only if we are prepared to make the additional assumption that the difference in the two groups is simply a shift in location (that is, the distribution of the data in one group is simply shifted by a fixed amount from the other) can we say that the test is a test of the difference in medians.

How to compare medians of production cycle times?

Comparing the medians of manufacturing cycle times ( Y = continuous) of two different production lines ( X ). Comparing the medians of the satisfaction ratings ( Y = discrete-ordinal) of customers before and after improving the quality of a product or service.

Which is the best test for normal distribution?

There are several statistical tests that can be used to assess whether data are likely from a normal distribution. The most popular are the Kolmogorov-Smirnov test, the Anderson-Darling test, and the Shapiro-Wilk test 1.