Using the answer from part (a), the pupil-teacher ratio in 2020 will be enter your response here. (Round to one decimal place as needed.)

The table shown gives the national average pupil-teacher ratio in public schools over selected years. a. Find the equation for the least squares line. Let x correspond to the number of years since 1992 and let y correspond to the average number of pupils per 1 teacher. b. Use the answer from part (a) to predict the pupil-teacher ratio in 2020. Does this seem realistic? c. Calculate and interpret the correlation coefficient. a. The equation for the least squares line is Y= -0.2233x+ 16.94". (Use integers or decimals for any numbers in the equation. Round to four decimal places as needed.) b. Using the answer from part (a), the pupil-teacher ratio in 2020 will be [}: (Round to one decimal place as needed.)