In this chapter, we will cover the following recipes:
Producing a graphical summary of data
Checking if data follows a normal distribution
Comparing the population mean to a target with a 1-Sample t-test
Using the Power and Sample Size tool for a 1-Sample t-test
Using the Assistant menu for a 1-Sample t-test
Looking for differences in the population means between two samples with a 2-Sample t-test
Using the Power and Sample Size tool for a 2-Sample t-test
Using the Assistant menu to run a 2-Sample t-test
Finding critical t-statistics using the probability distribution plots
Finding correlation between multiple variables
Using the 1 Proportion test
Graphically presenting the 1 Proportion test
Using the Power and Sample Size tool for a 1 Proportion test
Testing two population proportions with the 2 Proportions test
Using the Power and Sample Size tool for a 2 Proportions test
Using the Assistant menu to run a 2 Proportions test
Finding the sample size to estimate a mean to a given margin of error
Using Cross tabulation and Chi-Square
Using equivalence tests to prove zero difference between the mean and a target
Calculating the sample size for a 1-Sample equivalence test
Introduction
In this chapter, we will explore how to use inferential statistical tools in Minitab. The emphasis of this chapter is on discovering population parameters and comparisons of these parameters to targets or between two groups of data. The majority of the tools used in this chapter can be found by navigating to the Stat | Basic Statistics menu within Minitab. This is shown in the following screenshot: