Z Test vs. T Test | Differences, Formula & Examples
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SOLVED: When should a two-population z test be used instead of a two-population t test? (1 point) The population standard deviation is unknown and n is greater than 30. The population standard deviation is unknown and n is less than 30. The population standard deviation is known and n is greater than 30. The population standard deviation is known and n is less than 30.Which of the following situations describes data from two separate populations? (1 point) The scores of 40 students on a pretest
SOLVED: When should a two-population z test be used instead …
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SOLVED:Explain how to perform a two-sample z -test for the difference between two population proportions.
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