The following data indicate the number of hours per week of using the computer (X) versus the eye vision (Y), rated from 1 to 20, where 20 means the best eye vision. Suppose we want to build a linear...

Extracted text: The following data indicate the number of hours per week of using the computer (X) versus the eye vision (Y), rated from 1 to 20, where 20 means the best eye vision. Suppose we want to build a linear model to predict the eye vision of a person who uses the computer 40 hours per week. Use the semiparametric approach (choose k = 3) to estimate the parameters. Computer usage (hrs/wk) Eye vision 10 19 15 18 40 14 30 13 35 15 70 6 85 60 7