00:01
So we are given that a table in which we can see we have been shown the regression residual, their corresponding degree of freedom, standard statistics, most standards one and the f statistic value is also given to us.
00:22
So by using those in the a part we have to write it down the sample regression equation.
00:30
So sample regression equation can be given by y is equals to 80 .30 minus of 0 .28 x1.
00:42
So how did we return it? because see the equation of line can be given by y is equals to mx plus where c interprets the intercept and m is nothing but indicating the slope.
00:57
From that table the intercept we have been given equals to 80 .30 while if we talk about the slope that is the value of m.
01:08
So, you can clearly see in just below to the intercept, we have been given that x as negative of 0 .28.
01:16
So, we just substituted this here and have found this equation of regression.
01:22
So, this will become the required answer for first a part of this question.
01:28
Now, in b part, we have to interpret the slope coefficient of this x1.
01:35
So here basically slope m is nothing but negative of 0 .28 which is negative which means that if we increase the value of x1 by just 1 unit then y will decrease by 0 .28 unit.
02:03
Unit.
02:04
Why decreasing? because it is having the relation with x as a slope of negative of 0 .28 units.
02:13
And if we decrease the value of x1 by unity, y will increase by 0 .28 units.
02:19
So, this will be the answer for b part of this question...