The results of fit are given in the table below. We would like to find whether there is a linear relationship between the Monthly Sales and month of sale.
Coefficients Standard Error
Intercept -46.48205129 21.30341795
Slope 20.49791167 2.894564507
Employ the hypothesis test to find whether there is linear relationship between Monthly Sales and the Month of the sale at the 0.05 significance level