Suppose the following data were collected from a sample of 15 ceos relating annual salary to years of experience and the economic sector their company belongs to. use statistical software to find the following regression equation:
salaryi=b0+b1experiencei+b2servicei +b3industriali+ei.
is there enough evidence to support the claim that on average, ceos in the service sector have lower salaries than ceos in the financial sector at the 0.01 level of significance? if yes, write the regression equation in the spaces provided with answers rounded to two decimal places. else, select "there is not enough evidence."