00:01
Hi, i'm david and i'm here to help you answer your question.
00:04
Now let me bring up your question here.
00:07
In the question here we would you discuss about the hypothesis testing.
00:11
And here we want to test the claim that 3 % of the user developed the nozer.
00:17
So instead the known hypothesis, the p equal to the zbon -z -3.
00:23
And we have the alternative hypothesis.
00:27
It will be the p not equal to the z -bon -zo -3.
00:30
Now we have the symbol n equal to the 5 ,857 and the x equal to the 156.
00:39
So from here we can find point s may be hot equal to x over n equal to 156 over 5857.
00:49
So we get equal to the 0 .0266.
00:56
And then the next time we need to find the test statistics.
00:59
It will be denoted by the z.
01:02
The formula will be the p -hast minus p over the square root of the p times 1 minus p divided by n.
01:09
So we have p -hat equal to the z -bon -zo -266 p equal to the z -bon -3 divided by the square root of the zabonzo 3 times 1 minus zabon 0 3 over the 5887.
01:25
So get equal to zabon 03 times 0 .97...