What is the calculation for linear regression for Calculate a 95% prediction interval estimate for the price of a 50 year old house with 3,000 square...

What is the calculation for linear regression for Calculate a 95% prediction interval estimate for the price of a 50 year old house with 3,000 square feet of living area, 3 bedrooms, and 2.5 bathrooms using your preferred regression model from part 5.