How to use minitab 16
This "quick start" guide shows you how to carry out a one-way ANOVA using Minitab, as well as how to interpret and report the results from this test. You need to conduct a post hoc test because the one-way ANOVA is an omnibus test statistic and cannot tell you which specific groups were significantly different from each other it only tells you that at least two groups were different. When there is a statistically significant difference between the groups, it is possible to determine which specific groups were significantly different from each other using a post hoc test. Alternately, a one-way ANOVA could be used to understand whether there is a difference in salary based on education level (i.e., your dependent variable would be "salary" and your independent variable would be "education level", which has three groups: "high school", "undergraduate degree" and "graduate degree"). If you have more than one dependent variable, you might need a one-way MANOVA.įor example, you can use a one-way ANOVA to determine whether weight loss is best achieved through exercise, diet, or exercise and diet combined (i.e., your dependent variable would be "weight loss", measured in kilograms, and your independent variable would be "intervention type", which has three groups: "exercise", "diet and "exercise and diet"). However, it is typically only used when you have three or more independent, unrelated groups, since an independent t-test is more commonly used when you have just two groups.
calculating the mean can only be done on quantitative data) then only columns of that data type will be available to use for those operations.The one-way analysis of variance (ANOVA) is used to determine whether the mean of a dependent variable is the same in two or more unrelated, independent groups of an independent variable. If the operation you conduct in Minitab only functions on a certain variable type (e.g. Otherwise, Minitab recognizes the data as quantitative. Those columns with the ‘-T’ indicate that the data in this column are considered text or categorical data. With the data from the Excel spreadsheet file into your Minitab worksheet window, you should notice that all columns are labeled ‘Cx’ where the ‘x’ is a number. First, we obtain some basic descriptive statistics. With the data in the Minitab worksheet, you can then perform any number of procedures.
Double click the file and the data should open in the Minitab worksheet (the window that looks similar to an Excel spreadsheet).
In the ‘Look In’ field use the drop down arrow to locate the saved Excel data file.In the ‘Files of Type’ field click the drop down arrow and select Excel.Open Minitab, then using the Minitab menus at the top of the application, select the option: Save the file locally (if using Minitab installed on the computer you are using) or save the file in your PASS space if using WebApps.
#HOW TO USE MINITAB 16 DOWNLOAD#
Loading Data into Minitab from an Excel Fileįor the examples in this section, download the minitabintrodata.xlsx spreadsheet file. First, we saw previously how you can enter data into the Minitab worksheet by hand, we will now walk through how to load a dataset into Minitab from an Excel file. Some of the examples below are repeats of what we did by hand in earlier lessons while others are new. Let's perform some basic operations in Minitab.