The regression equation gives us a relation between the independent and the dependent variable.
The regression equation with 1 independent variable can be written as:
The hypothesis tells us whether the dependent variable have a significant relationship with the independent variable or not.
We test that there is no effect of the particular dependent variable on the predicted variable.
We carry this hypothesis with the null hypothesis that there is no significant relationship between the dependent variable and the independent variable
Thus, we check whether the coefficient of x is zero or not.
The null hypothesis can be designed as:
The p-value for each term tests the null hypothesis that the coefficient is equal to zero (no effect).
To find the largest possible rectangular area, you must find the two highest common factors, which are, in this case is 20 x 10. therefore the answer is 20m x 10m