From the course: Learning Minitab (version Minitab 17)
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Compare proportions - Minitab Tutorial
From the course: Learning Minitab (version Minitab 17)
Compare proportions
- [Voiceover] In this movie, I will show you how to compare proportions using Minitab. Open up a blank worksheet in Minitab or you can use exercise file 05-01. Let's say I have a situation where I have 70 heads out of 100 coin tosses. The question then is, is that a fair coin? We can test for that. Go to Stat, Basic Statistics, One Proportion. And our data is a summarized data, so let's select that. So, we have 70 heads out of 100 coin tosses and we want to verify if it's a fair coin or not. So, perform hypothesis test against zero point five, where I have a 50% chance of heads. Options, and the settings here look good. We're testing for equality or not. OK and OK. And here we have the one proportion test printout showing a p value of zero point zero zero zero, less than zero point five. Therefore, we reject the null hypothesis. Meaning it is not a fair coin. Meaning that the proportion is not equal to zero point five and this is confirmed by the confidence interval, which does not…
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