This problem has been solved!You'll get a detailed solution from a subject matter expert that helps you learn core concepts.The owner of a retail store randomly selected the following weekly data on profits and advertising cost.Week Advertising Cost ($) Profit ($)1 0 2002 50 2703 250 4204 150 3005 125 325a. Write down the appropriate linear relationship between advertising cost and profits. Which is the dependent variable? Which is the independent variable?b. Calculate the regression line equationc. Predict the profits for a week when $200 is spent on advertising.d. Test if the relationship between advertising cost and profits is statistically significant at the 0.05 level of significance