Question: An article in Air and Waste (Update on Ozone Trends in Californias South Coast Air Basin, Vol. 43, 1993) studied the ozone levels on the

An article in Air and Waste (€œUpdate 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 level exceeds 0.20 parts per million depends on the seasonal meteorological index (the seasonal average 850 millibar temperature). The data follow:

(a) Construct a scatter diagram of the data.
(b) Fit a simple linear regression model to the data. Test for significance of regression.
(c) Find a 95% CI on the slope
(d) Analyze the residuals and comment on model adequacy.

Days Index Year Index Year Days 1976 1984 18.0 91 16.7 81 1977 17.1 65 17.2 105 1985 18.2 1978 106 1986 61 16.9 1987 1979 18.1 17.1 108 48 1980 88 17.2 1988 18.2 61 18.2 1981 91 1989 43 17.3 1990 1982 58 16.0 33 17.5 82 17.2 1983 1991 36 16.6

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b The regression equation is 19315296x Analysis of Variance Source DE Regression ... View full answer

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