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7-9 Te t
The following is a list of tests, and a description of what each one tests for.
Test Name
Z
Test
Z
1-Sample
Test
Z
2-Sample
Test
Z
1-Prop
Test
Z
2-Prop
Test
t
Test
t
1-Sample
Test
t
2-Sample
Test
Linear Regression
2
Test
F
2-Sample
Test
7-9-1
Tests
Z
The
Test provides a variety of different tests based on standard
deviation based tests. They make it possible to test whether or not
a sample accurately represents the population when the standard
deviation of a population (such as the entire population of a
country) is known from previous tests.
Tests a single sample mean against the known mean of the null
hypothesis when the population standard deviation is known.
The normal distribution is used for the 1-sample
Tests the difference between two means when the standard
deviations of the two populations are known.
The normal distribution is used for the 2-sample
Tests a single sample proportion against the known proportion of
the null hypothesis.
The normal distribution is used for the 1-Prop
Tests the difference between two sample proportions.
The normal distribution is used for the 2-prop
Used instead of the
is unknown.
Tests a single sample mean against the known mean of the null
hypothesis when the population standard deviation is unknown.
t
The
distribution is used for the 1-sample
Tests the difference between two means when the standard
deviations of the two populations are unknown.
t
The
distribution is used for the 2-sample
t
Tests the linear relationship between the paired variables (x, y). The
Test
method of least squares is used to determine a and b, which are the
coefficients of the regression formula y = a + bx. The p-value is the
probability of the sample regression slope (b) provided that the null
hypothesis is true,
The t distribution is used for the linear regression t test.
Tests the independence of two categorical variables arranged in
matrix form. The
matrix to the expected theoretical matrix.
2
The
distribution is used for the
Tests the ratio between sample variances of two independent
random samples.
F
The
distribution is used for the 2-sample
20060301
Description
Z
Test when the population standard deviation
t
t
= 0.
2
test for independence compares the observed
2
test.
Z
test.
Z
test.
Z
test.
Z
test.
test.
test.
F
test.
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