00:01
So in order to select appropriate test statistic, first we have to define or understand whether the given purpose is for one sample or two sample.
00:29
One sample or two sample and in two sample itself you have to select whether it is dependent or independent or independent.
00:37
That is the first thing you have to consider in your mind.
00:40
Then we have to know whether sigma is given.
00:45
That is population standard evaluation is given or not.
00:50
If it is given, then we are using it as z test.
00:56
If it is not given, then we are usually convert it into t, usually do the procedure with the t test.
01:04
Now if mu is given or not, if population standardization is given or not.
01:14
So you have to know that.
01:16
That is if the parameters are available or not.
01:18
That is the thing from these two points, which parameter is to be determined.
01:23
Now, we have to defend the level of confidence...