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The z-test and the t-test

The z-test and the t-test: Statistics with Excel Part One
The z-test and the t-test: Statistics with Excel Part One

Joe Schmuller explains the usual procedure for a statistical testing. Joe outlines when the centrail limit theorem applies, how to use the standard normal distribution as the sample distribution of the mean, and how to attain z-scores to carry out z-tests. In contrast to z-tests, when the Central Limit Theorem does NOT apply the t-distribution df=N-1 is used as the sampling distribution of the mean.

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Skill Level Appropriate for all
3h 45m
Duration
383,254
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Skills covered in this course
Business Intelligence Big Data IT Data Analysis Excel

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