00:01
In this question we are given with the data about two samples.
00:07
The sample size of first sample and one is equal to 13.
00:12
The mean of the first sample is 45 .2 and the standard deviation of the first sample is 12 .4.
00:20
And the sample size of the second sample is 18.
00:24
Mean of the second sample is 52 .1 and the standard deviation of second sample is 14 .7.
00:30
We are asked to test whether mean of the population 1 is not equal to mean of population 2 or mu 1 is not equal to mu 2.
00:43
This is the statement which we are going to test.
00:46
So we will take this statement as our alternative hypothesis.
00:52
The reverse of this statement will be our non -hypothesis, which is mu -1 is equal to m .2.
00:59
That is, main of the first population is equal to m2.
01:05
0 .05, the level of significance is given in the question which is 0 .05...