4. It is parametric test developed By william Gosset in 1908.
A t test is a statistical test that is used to compare the mean of two groups.
5.
6. when we used t test
To calculate means of two
groups
When sample size is small.
7.
8. Interpretation of output from independent- sample t-Test
Step1:Checking the information about the groups.
step2:Checking assumptions
step3:Assessing difference between the groups
9. Procedure for independent samples t-Test
1.From the menu at the top of secreen,click Analyze,then
select compare means,then independent samples T test.
2.Move the dependent variable (e.g total self
eateem:tslfest)into the Test variable box.
3.Move the independent variable
(Categorical)Variable(e.g.sex)into the section lablled
groping variable.
4.Click on Define groups and type in the numbers used in
the data set to code each group.
10. In the current data file,1=Male,2=Female;Therfore,in the
group 1 box,type 1,and in the group 2 box,type 2.If you
cannot remember the code used,right click on the
variable name and then choose variable information
from the pop-up boxthat appears.This will list the codes
and labels.
5.Click on continue and then ok(or on paste to save to
syntax Editor)
The syntax generated from this procedure is:
Cont...
