Z Test: Formula & Example


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question 1 of 3

What are z-tests?

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1. When are z-tests useful?

2. What type of samples are best to have when dealing with z-tests?

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About This Quiz & Worksheet

Z-tests are used to determine the significance of statistical differences between sample and population means. Assess your knowledge of these tests with this quiz and worksheet. Assessment items focus on the use of z-tests, information involved in z-tests, and other facts from the lesson.

Quiz & Worksheet Goals

You will be tested on:

  • The usefulness of z-tests
  • Which z-test is used the most
  • What sample size is best for z-tests

Skills Practiced

  • Knowledge application - use your knowledge to answer questions about when a two-sample z-test should be used
  • Reading comprehension - ensure that you draw the most important information from the lesson on z-tests
  • Information recall - access the knowledge you've gained regarding what a z-test is

Additional Learning

Review the lesson, Z Test: Formula & Example, to learn about the use of the z-test formula. Objectives covered include:

  • Know the various types of z-tests
  • Understand the one sample z-test formula
  • Know how z-test calculations are used