When conducting a T-test, the difference between two groups is 1 and 0.337. What does the...
When conducting a T-test, the difference between two groups is 1 and 0.337. What does the results say? Is 1 a significant difference and what does it mean?
Homework Answers
Ans:
Given that
point estima for difference=sample means difference=1
standard error for difference=0.337
Test statistic:
t=1/0.337=2.967
say,df=18
(there are 10 subjects in each group,so df=10+10-2=18)
p-value=tdist(2.967,18,2)=0.0083
Assume significance level=0.01
As,p-value<0.01,we reject null hypothesis.
There is sufficient evidence to conclude that there is d=significant difference between means of two groups.
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