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Z-TEST FOR A MEAN WHEN IS THE STATISTICAL TEST APPROPRIATE TO USE OR APPLICABLE? Type of Data Is Population Standard Deviation Known? How many samples? How many samples? Quantitative How many samples? z-test for a proportion 2-test for difference of two proportions

Z-TEST FOR A MEAN WHEN IS THE STATISTICAL TEST APPROPRIATE TO USE OR APPLICABLE? Type of Data Is Population Standard Deviation Known? How many samples? How many samples? Quantitative How many samples? z-test for a proportion 2-test for difference of two proportions

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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PROCEDURE TABLE Z-TEST FOR A MEAN WHEN IS THE STATISTICAL TEST APPROPRIATE TO USE OR APPLICABLE? Type of Data How many samples? How many samples? Two z-test for difference of two means Quantitative One Is Population Standard Deviation Known? How many samples? One z-test for a proportion Two z-test for a mean Independent or ASSUMPTIONS Samples of each population must be independent from one another Standard deviation must be known • Distribution of test statistic must be normal HYPOTHESIS TEST PROCEDURE State the null and alternative hypothesis. Categorical One t-test for a mean Two z-test for difference of two proportions
Transcribed Image Text:PROCEDURE TABLE Z-TEST FOR A MEAN WHEN IS THE STATISTICAL TEST APPROPRIATE TO USE OR APPLICABLE? Type of Data How many samples? How many samples? Two z-test for difference of two means Quantitative One Is Population Standard Deviation Known? How many samples? One z-test for a proportion Two z-test for a mean Independent or ASSUMPTIONS Samples of each population must be independent from one another Standard deviation must be known • Distribution of test statistic must be normal HYPOTHESIS TEST PROCEDURE State the null and alternative hypothesis. Categorical One t-test for a mean Two z-test for difference of two proportions
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