18.104.22.168 - Minitab Express: Simple Random Sampling
Using simple random sampling methods, each member of the population has an equal chance of being selected. We can use statistical software to select a simple random sample.
In the example below we will randomly select 10 names from a class list.
MinitabExpress – Random Sampling from a Column
We could place those names into a column in Minitab Express.
Open the following data set:
and randomly select 10 using Minitab Express by:
- On a PC or Mac select DATA > Sample from Columns
- Double-click on the variable Name in the box to the left to insert it into the "Take a sample from the following columns" box.
- In the box labeled "Number of rows in each sample", enter 10.
- By default, leave the method as "Sample without replacement".
- Click OK.
The result should be the following output:
|Source data column||Name|
|Number of rows sampled||10|
|Sampled data column||C2|
|10 rows were sampled from Name and stored in C2.|
Along with a random sample of the names in the second column in the data worksheet:
|Name||Sample From Name|
Since we are using simple random sampling procedures, the results will be different each time due to random sampling variation. Try these steps a few times, you should see that you get a different set of 10 names each time.
Select your operating system below to see a step-by-step guide for this example: