An article in Air and Waste ("Update on Ozone Trends in California's South Coast Air Basin,"Vol.43, 1993) studied the ozone levels on the South Coast air basin of California for the years 1976-1991. The author believes that the number of days that the ozone exceeds 0.20 parts per million depends on the seasonal meteorological index (the seasonal average 850 millibar temperature). The data follow: Year Days Index Year Days Index 1976 a 17.0 1977 17.1 1978 106 1979 108 1980 17.2 1982 58 1983 82 Round your answers to 2 decimal places. (a) Fit a simple linear regression model to the data. Test for significance of regression using a = 0.05. -246.2411028 i 18.2392355 X Calculate fo: i 0.07502416 Is the simple linear regression model significant? No. V (b) Calculate a 95% confidence interval on the slope. i -2.122328965 S BIS i 38.60079997