00:01
Hi, i'm david and i'm havio have you answering your question.
00:03
In the question here, we are going to discuss about the central limit theorem.
00:07
The theorem says that if we have the n greater equal to the 30, the symbol mean x -par will be approximately to the normal.
00:15
In such a way that the minimum the x -par is equal to the mean of the population, standard division x -par equal to the sigma or equals according to the n.
00:23
And because it follows by the normal, if we turn the x -par will be minus the mean of a standard division, we have 10 standard no more.
00:31
In the question here we have the n equal to the 34, so it's greater than 30 already.
00:37
And we're given the mule equal to the 107 .33 and the standard division equal to the 20.
00:49
And i see you answer the part a, b, c, i see you answer the part a and p already.
00:56
So let me answer the part c for you.
00:58
But let me verify the x bar will follow by the normal with the minimum the x bar equal to the minimum the population and it will equal to the 107 .33 standard distribution x bar by the formula equal to the sigma 20 over square root of the 34 then we get equal to square 34 equal to the 3 .4 3 i route to the 2 decimal places now let me verify if you did the p correctly for the p, once you find the probability the x bar smaller than the 110...