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Essentials of Statistics for the B...

8th Edition
Frederick J Gravetter + 1 other
ISBN: 9781133956570

Solutions

Chapter
Section
BuyFindarrow_forward

Essentials of Statistics for the B...

8th Edition
Frederick J Gravetter + 1 other
ISBN: 9781133956570
Textbook Problem

Under what circumstances is a t statistic used instead of a z-score for a hypothesis test?

To determine

The circumstances when t-statistic is used instead of z-score for a hypothesis test.

Explanation

According to the conditions of t-test, the t- test is used when

  • The sample size is small which is less than 30.
  • The population standard deviation is not known...

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