00:01
In this question we have h0 mun is equal to mu0.
00:09
Here h1 mun is not equal to mud.
00:19
So, our option c is correct answer.
00:28
Here is the explanation.
00:30
The test is too tailed.
00:39
Here option b is correct for this part.
00:47
Now, we have a and we have c part for which we have to find test statistic for which we have given that x1 equals to 3 .38, s1 equals to 0 .05 and n1 equals to 75.
01:18
Here x2 equals to 3 .37, s2 equals to 0 .04.
01:26
Here n2 is equal to 75.
01:29
Now, we are putting these values in this formula.
01:35
Here x1 bar minus x2 bar minus mu1 minus mu2.
01:57
Here this is tends to be 0 upon under root s1 square upon n1 plus s2 square upon n2.
02:09
Here now we are putting all the values in this formula.
02:12
Then we get 3 .38 minus 3 .37 upon under root 0 .05 square upon 75 plus 0 .04 square upon 75.
02:32
By solving it we get 0 .01 upon 0 .05021...