Econ 203: Midterm 1
14 Cards in this Set
| Front | Back |
|---|---|
|
F-Test (for difference in variance)
|
use for difference in variances/dispersion
Ho= all same
Ha= at least 2 different
|
|
F-Test do not reject null
|
p>alpha
perform an independent sample t-test for difference in means (equal)
|
|
F-Test reject null
|
p<alpha
perform an independent sample t-test for difference in means (unequal)
|
|
z-test for population proportion
|
testing for how one population compares to a constant
|
|
chi square test
|
comparing a population variance to a constant value
|
|
z test for difference in proportions
|
interested in two different populations, want difference
|
|
independent samples t-test for difference in mean - unequal variances
|
when you reject the null for an F test
|
|
paired sample t-test for difference in means
|
unknown standard deviation, testing the average difference
|
|
independent samples t test for difference in means - equal variances
|
do not reject null for F test (samples not different), comparing means of 2 populations without knowing variance
|
|
F-test difference in means
|
comparing means of more than 2 populations
|
|
z test for difference in means
|
comparing two population means and know variance
|
|
t test for the mean
|
testing mean of one population, standard deviation unknown
|
|
z test for mean
|
testing mean of one population, standard deviation known
|
|
F test
|
ratio of two variances
Ho --> ratio=1
|
Econ 203: Midterm 1