5.6 - Randomization Tests in Minitab Express

In this lesson you have learned how to construct randomization distributions and conduct randomization tests for one group's proportion or mean using StatKey. Minitab Express can also be used to conduct randomization tests which you will learn here. 

Both of the examples below use the data set:

Which contains data collected from a representative sample of STAT 200 students at the beginning of the Fall 2016 semester. 

MinitabExpress  – Conducting a Randomization Test for a Proportion

Research question: Is the percent of all STAT 200 students who own a dog different from 50%?

  1. Open the data set:
  2. On a PC: Select STATISTICS > Resampling > Randomization Tests > 1-Sample Proportion
    On a Mac: Select Statistics > Resampling > Randomization Test for 1-Sample Proportion
  3. Double click the variable Dogs in the box on the left to insert the variable into the Sample box
  4. Use the default Event of Yes (i.e., the event of interest is owning a dog)
  5. Use the default Number of resamples, 1000
  6. For Hypothesized proportion enter 0.50
  7. Click on the Options tab
  8. The default Alternative hypothesis is Proportion ≠ hypothesized value, this is a two-tailed test
  9. Click OK

This should result in output similar to the output below. Note that your results may be slightly different due to random sampling variation.

Randomization Test Histogram for Dog Frequency

Video Walkthrough

Select your operating system below to see a step-by-step guide for this example.

MinitabExpress  – Conducting a Randomization Test for a Mean

Research question: Is there evidence that the mean height in the population of all STAT 200 students is different from 66 inches?

  1. Open the data set:
  2. On a PC: Select STATISTICS > Resampling > Randomization Tests > 1-Sample Mean
    On a Mac: Select Statistics > Resampling > Randomization Test for 1-Sample Mean
  3. Double click the variable Height in the box on the left to insert the variable into the Sample box
  4. Use the default number of resamples, 1000
  5. For Hypothesized mean enter 66
  6. Click on the Options tab
  7. The default Alternative hypothesis is Mean ≠ hypothesized value, this is a two-tailed test
  8. Click OK

This should result in output similar to the output below. Note that your results may be slightly different due to random sampling variation.

Randomization Test Histogram for Height Frequency

Video Walkthrough

Select your operating system below to see a step-by-step guide for this example.