z test, f-test,etc
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Z-test, F-test,etc
Z-Test
It is a hypothesis testing procedure based on the z-statistic which assumes that the probability distribution of the events under investigation follows the standard normal curve.
nxz x
x
,
Key words
Hypothesis testing: Null Hypothesis vs Alternative Hypothesis.
aHH vs 0Standard Normal
Probability Distribution.
Key words
Z-statistic
nxz x
x
,
How to do the z-test
How to construct the null hypothesis and alternative hypothesis
How to do the z-test
How to do the z-test
Common values for α are 0.05 and 0.025
error 1 Type of yprobabilit
Define the probability of a Type I error -the probability of rejecting the null hypothesis when in fact it is true.
How to do the z-testChoose the test-statistic
How to do the z-testCompute the critical region (one-tailed test)
How to do the z-test
Set the critical region (two-tailed test)
Sample problem
Sample Problem
Sample Problem
Sample Problem
Sample Problem
Sample Problem
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