Question: Cloud seeding, a process in which chemicals such as silver iodide and frozen carbon dioxide are introduced by aircraft into clouds to promote rainfall was
Cloud seeding, a process in which chemicals such as silver iodide and frozen carbon dioxide are introduced by aircraft into clouds to promote rainfall was widely used in the 20-th century. Recent research has questioned its effectiveness [Journal of Atmospheric Research (2010, Vol. 97 (2), pp. 513-525)]. An experiment was performed by randomly assigning 52 clouds to be seeded or not. The amount of rain generated was then measured in acre-feet. Here are the data for the unseeded and seeded clouds:
Unseeded:
81.2
26.1
95.0
41.1
28.6
21.7
11.5
68.5
345.5
321.2
1202.6
1.0
4.9
163.0
372.4
244.3
47.3
87.0
26.3
24.4
830.1
4.9
36.6
147.8
17.3
29.0
Seeded:
274.7
302.8
242.5
255.0
17.5
115.3
31.4
703.4
334.1
1697.8
118.3
198.6
129.6
274.7
119.0
1656.0
7.7
430.0
40.6
92.4
200.7
32.7
4.1
978.0
489.1
2745.6
Critically examine and compare both sets of data.Include not only graphical and numeric summaries of each, but examine and comment upon probability plots of the data to suggest plausible distribution models.
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