a. Is a trend evident in the data? Which time-series techniques might be appropriate for estimating the average of these data? b. A medical center for asthma and respiratory diseases located in Denver has great demand for its services when air quality is poor. If you were in charge of developing a short-term (say, 3-day) forecast of visibility, which causal factor(s) would you analyze? In other words, which external factors hold the potential to significantly affect visibility in the short term? c. Tourism, an important factor in Denver's economy, is affected by the city's image. Air quality, as measured by visibility, affects the city's image. If you were responsible for development of tourism, which causal factor(s) would you analyze
a. Is a trend evident in the data? Which time-series techniques might be appropriate for estimating the average of these data? b. A medical center for asthma and respiratory diseases located in Denver has great demand for its services when air quality is poor. If you were in charge of developing a short-term (say, 3-day) forecast of visibility, which causal factor(s) would you analyze? In other words, which external factors hold the potential to significantly affect visibility in the short term? c. Tourism, an important factor in Denver's economy, is affected by the city's image. Air quality, as measured by visibility, affects the city's image. If you were responsible for development of tourism, which causal factor(s) would you analyze
Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter2: Introduction To Spreadsheet Modeling
Section: Chapter Questions
Problem 20P: Julie James is opening a lemonade stand. She believes the fixed cost per week of running the stand...
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Transcribed Image Text:1. Figure 8.90 shows summer air visibility measurements for Denver, Colorado. The
acceptable visibility standard is 100, with readings above 100 indicating clean air and good
visibility, and readings below 100 indicating temperature inversions caused by forest fires,
volcanic eruptions, or collisions with comets.
Figure 8.9 Summer Air Visibility Measurements
Visibility rating
250
225
200
175
150
125
100
75
50-
25
0
Year 2
Year 1
22 25 28 31 3
July
6
9 12 15 18 21 24 27 30
Date
August
Transcribed Image Text:a. Is a trend evident in the data? Which time-series techniques might be appropriate
for estimating the average of these data?
b. A medical center for asthma and respiratory diseases located in Denver has great
demand for its services when air quality is poor. If you were in charge of
developing a short-term (say, 3-day) forecast of visibility, which causal factor(s)
would you analyze? In other words, which external factors hold the potential to
significantly affect visibility in the short term?
c. Tourism, an important factor in Denver's economy, is affected by the city's image.
Air quality, as measured by visibility, affects the city's image. If you were
responsible for development of tourism, which causal factor(s) would you analyze
to forecast visibility for the medium term (say, the next two summers)?
d. The federal government threatens to withhold several hundred million dollars in
Department of Transportation funds unless Denver meets visibility standards
within 8 years. How would you proceed to generate a long-term judgment forecast
of technologies that will be available to improve visibility in the next 10 years?
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