00:01
According to the problem, the given data is for husbands.
00:08
So, sample size for given data is, that is, n for husbands is 15.
00:18
Sample mean, that is x bar for husband is 47 .6 and standard deviation, that is s for husband is 4 .214.
00:34
So, again the sample data for wives is, the sample size for wife, that is, n of w is 15.
00:48
X bar, that is, mean for wives is x bar w, it is 45 .8 and standard deviation for wives is 3 .772.
01:08
So, all data is given.
01:09
So, now we will calculate the degree of freedom.
01:12
This is the short form for degree of freedom.
01:15
So, degree of freedom will be n of h plus n of w minus 2.
01:23
So, n of h is 15, n of w is also 15 minus 2.
01:29
So, we will get the value of degree of freedom as 28.
01:35
So, degree of freedom is 28.
01:40
Now, the significance level is given.
01:44
Significance level is given.
01:50
Significance level is what? it is represented by alpha.
01:54
So, value of alpha is given, it is 0 .01.
01:57
It means what? it is given as 1%.
02:01
So, now we will calculate the critical value or critical t value.
02:07
So, critical t value will be given by when we conduct the 2 -tail test.
02:13
When the degree of freedom is 28.
02:18
Degree of freedom is 28 and value of alpha is given.
02:24
It is given for whole sample...