The following data was collected to explore how the number of square feet in a house, the number of bedrooms, and the age of the house affect the selling price of the house. The dependent variable is the selling price of the house, the first independent variable (x1) is the square footage, the second independent variable (x2) is the number of bedrooms, and the third independent variable (x3) is the age of the house. Effects on Selling Price of Houses Square Feet Number of Bedrooms Age Selling Price 3028 5 13 266500 3025 5 11 261200 2827 5 11 220800 2666 4 10 200000 2585 3 5 168000 2174 3 4 151800 2096 3 3 137600 1640 2 2 120600 1278 2 1 102700 Step 1 of 2 : Find the p-value for the regression equation that fits the given data. Round your answer to four decimal places.