It is known that carbon monoxide has a great influence on health. The following data are the carbon monoxide concentration (x in milligrams per cubic meter) and allergic morbidity (x) (y)
8.49 14.4
9.68 16.8
8.52 17.3
9.41 17.2
6.05 13.1
9.26 15.9
6.38 15.4
5.75 14.3
4.36 10.2
3.54 12.2
6.25 13.2
(a) Fit the linear regression model by least squares, find the estimates of the slope and intercept. Round your answer to two decimal places (e. g. 98.76) Round your answer to three decimal places (e. g. 98.765)
(b) Find the value of R Round your answer to one decimal place (e. g. 98.7)