Both standard deviations are known and we determined α 2 = 0.05. Now the degrees of...
Both standard deviations are known and we determined
| α |
| 2 |
= 0.05. Now the degrees of freedom needs to be found to find the corresponding t value from a table. The degrees of freedom is calculated as follows where s1 is the sample standard deviation for population 1, n1 is the sample size from population 1, s2 is the sample standard deviation for population 2, and n2 is the sample size from population 2.
df =
|
||||||||||||||||
|
The needed values were found to be
n1 = 10,
s1 = 2.5634,
n2 = 8,
and
s2 = 3.5517.
Use these values to find the degrees of freedom, rounding the result to one decimal place.
Homework Answers
Solution :
Given that standard deviations are known.
Degrees of freedom
= n1 + n2 - 2
= 10 + 8 - 2
= 16
Add Answer to:
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