00:01
Hi, for this problem, we want to test the no hypothesis as a significant level of 0 .05.
00:09
Data is provided over here.
00:13
I collected from the problem.
00:15
Even though i find the, it is strange that the standard deviation is somehow rather than the meme, but if that's the problem stated, that's kind of a snoop.
00:26
Right, so, first we're going to check the condition.
00:28
So we just for the purpose of this video we just assume the conditions are met.
00:34
So assume samples are random, assume the sample size is less than one tenth of the population so that we can assume independence and the normal condition.
00:46
Since our sample size is not large enough to satisfy the central limit theorem, we just assume the population distribution is normal so that we can start testing.
00:57
Right so first i would like to write that a formula for the t because we're going to use a two sample t test for difference of mean right so the formula for t is going to be as follows t is going to be equal to the difference between the sample means minus the difference between the population mean as hypothesized in the no hypothesis over the standard error...