00:01
Hi, i'm david and i'm here to have jansin your question.
00:03
Now let me bring up your question here.
00:06
In this question here, we are going to discuss about the normal distribution.
00:10
Let me remind you that if we have the n greater equal to the 30, and then the same amount x -bar will be approximately to the normal.
00:19
In such a way that it will tell the x -par we manage the mean of a standard deviation, the variable square of n, we will obtain the standard normal.
00:28
In this question here, we are given a standard, the mean equal to the 0175, standard division equal to the 0102, and the symbol mean should be less than the 014 or greater than the 176, and then the process will be shut down for the adjustment.
00:49
Once you find the probability that the manufacturing line will be shut down unnecessarily, therefore, we want to find the probability that the x -bair in the shutdown range.
01:04
So therefore, want to find the probability x -py will be smaller than the z -bon -74 or x -pyreter down the 0 -76.
01:15
Now because of this strong, we can write this probability as the x -pyre would be smaller than the z -bon -74, or here will become a plus.
01:25
And then xx will be greater than the 0 .76.
01:29
Now the next time we need to turn the xxby into the z.
01:32
This xxby into the z.
01:34
To do it, we need to apply the formula here.
01:37
So we get equal to probability of 0 .74...