Please help how to do longhand

Finding the Equation of a Regression Line In Exercises 17-26, find the equation of the regression line for the data. Then construct a scatter plot of the data and draw the regression line. ( Each pair of variables has a significant correlation.) Then use the regression equation to predict the value of y for each of the x-values, if meaningful. If the x-value is not meaningful to predict the value of y, explain why not. If convenient, use technology.26. Age and Hours Slept The ages {in years} of II] infants and the numbers of hours each slept in a day IIm mm {a} .r = 0.3 year {b} .r = 3.9 years (c) x = {1.15 year {:1} J: = {1.3 year