00:01
Hi, i'm david and i'm here to have you answering your question.
00:03
Now let me bring up your question here.
00:06
Let me make it bigger.
00:08
In the question here we are going to discuss about the linear regression.
00:12
Let me remind you that the linear recursion of the white heart equal to the p0 plus the p1 times the x.
00:22
And the formula for the p0, it will equal to the y bar and then minus p1 times the x bar.
00:31
And the p1 it will equal to the r time with the s y over sx.
00:38
Now in the first question here we will have a statistician would guess the chinese level of 10 randomly selected people is we will have this will be assuming the where for options for instance, one standard division above the mean, the population means minus n, the mean of the populations.
01:04
One standard division below the mean.
01:07
And here we will see, assume the chinese measure on 1 to the 10 scales is normally distributed in the population.
01:23
A statistician would guess that the finite level obtained resulted people.
01:31
We want to guess the mean on the population.
01:34
That's going to be exactly the one we want to guess here.
01:38
And the next question here, if we have the r, the x, and the xy and want to find a slop.
01:49
Therefore, if we're black into the formula here, we have r equal to the minus 0 .69 and and s y equal to the 6 .98 over the 1 .08...