Air pollution control specialists in southern California monitor the amount of ozone, carbon dioxide, and nitrogen dioxi

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Air pollution control specialists in southern California monitor
the amount of ozone, carbon dioxide, and nitrogen dioxide in the
air on an hourly basis. The hourly time series data exhibit
seasonality, with the levels of pollutants showing patterns that
vary over the hours in the day. On July 15, 16, and 17, the
following levels of nitrogen dioxide were observed for the 12 hours
from 6:00 A.M. to 6:00 P.M.

Air Pollution Control Specialists In Southern California Monitor The Amount Of Ozone Carbon Dioxide And Nitrogen Dioxi 1 (74.09 KiB) Viewed 18 times

Air Pollution Control Specialists In Southern California Monitor The Amount Of Ozone Carbon Dioxide And Nitrogen Dioxi 2 (200.64 KiB) Viewed 18 times

Air Pollution Control Specialists In Southern California Monitor The Amount Of Ozone Carbon Dioxide And Nitrogen Dioxi 3 (111.94 KiB) Viewed 18 times

Air Pollution Control Specialists In Southern California Monitor The Amount Of Ozone Carbon Dioxide And Nitrogen Dioxi 4 (97.33 KiB) Viewed 18 times

July 15: July 16: July 17: 25 28 35 35 35 45

b. Use the following dummy variables to develop an estimated regression equation to account for the seasonal effects in the data (to 2 decimals if necessary). Hourl = 1 if the reading was made between 6:00 A.M. and 7:00 A.m.; 0 otherwise Hour2 = 1 if if the reading was made between 7:00 A.M. and 8:00 A.m.; 0 otherwise Hourl1 = 1 if the reading was made between 4:00 P.M. and 5:00 P.M., O otherwise. Note that when values of the 11 dummy variables are equal to 0, the ervation corresponds to the 5:00 P.M. to 6:00 P.M. hour. The regression equation is : Level = + Houri + Hour2 + Hour3 + Hour4 + Hours + Houro + Hour7 + Hour8 + Hourg + Hour10 + Hour11

c. Using the estimated regression equation developed in part (a), compute estimates of the levels of nitrogen dioxide for July 18 (to 2 decimals). Hour 1 25 Hour 2 Hour 3 Hour 4 Hour 5 Hour 6 Hour 7 Hour 8 Hour 9 Hour 10 Hour 11 Hour 12

The regression equation is : X Level = + Hourl + Hour2 + Hour3 + Hour4 + Hour5 + Hour6 + Hour + Hour8 + Hourg + Hour10 + Hour11 + t Based upon the seasonal effects in the data and linear trend, compute estimates of the levels of nitrogen dioxide for July 18 (to 3 decimals). Hour 1 Hour 2 X Hour 3 X Hour 4 Hour 5 Hour 6 Hour 7 Hour 8 3 Hour 9 8 Hour 10 8 Hour 11 Hour 12