In the real world, it is common to compare two responses in statistical studies. For example, comparing the effectiveness of two marketing strategies or two medical treatments.
We can use hypothesis tests or confidence intervals to compare two population means. That’s the subject matter of Ch 21.
Today, we’ll discuss how to compare two population means via hypothesis testing. All the 5 steps are more or less similar to those in one-sample hypothesis tests in Ch 20.
Instructions
- There are 2 problem in this lab work.
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- #21.49 — one-sided hypothesis test
- The question is exactly the same in both the 8th and the 9th edition.
- #21.49 — one-sided hypothesis test
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- One additional question (not in book) — one-sided hypothesis test
We will do two-sided tests in homework multiple choice problems later.
- The video explains the concept and shows you how to do the lab work:
- Submit your lab work as one single PDF file to Canvas before the due date.
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