Answered: Rain Simpson, Alsen, and Eden…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Rain Simpson, Alsen, and Eden (Technometrics 1975)
report the results of trials in which clouds were seeded
and the amount of rainfall recorded. The authors report
on 26 seeded and 26 unseeded clouds in order of the

amount of rainfall, largest amount first. Here are two pos-
sible tests to study the question of whether cloud seeding

works. Which test is appropriate for these data? Explain
your choice. Using the test you select, state your
conclusion.
Paired t-Test of m11 - 22
Mean of Paired Differences = -277.39615
t-Statistic = -3.641 w>25 df p = 0.0012
2-Sample t-Test of m1 - m2
Difference Between Means = -277.4
t-Statistic = -1.998 w>33 df p = 0.0538a) Which of these tests is appropriate for these data?
Explain.
b) Using the test you selected, state your conclusion.

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