A. Clearly state an appropriate null hypothesis and an alternative hypothesis. B. What proportion of deaths occurred while the windows were set at a vertical orientation? C. What statistical test would you use to test the null hypothesis? D. Carry out the statistical test from part (c). Is there evidence that window angle affects the mortality rates of birds?
A. Clearly state an appropriate null hypothesis and an alternative hypothesis. B. What proportion of deaths occurred while the windows were set at a vertical orientation? C. What statistical test would you use to test the null hypothesis? D. Carry out the statistical test from part (c). Is there evidence that window angle affects the mortality rates of birds?
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
A. Clearly state an appropriate null hypothesis and an alternative hypothesis.
B. What proportion of deaths occurred while the windows were set at a vertical orientation?
C. What statistical test would you use to test the null hypothesis?
D. Carry out the statistical test from part (c). Is there evidence that window angle affects the mortality rates of birds?
Transcribed Image Text:In North America, between 100 million
and 1 billion birds die each year by
crashing into windows on buildings,
more than any other human-related
cause. This figure represents up to 5% of
all birds in the area. One possible
solution is to construct windows angled
downward slightly, so that they reflect
the ground rather than an image of the
sky to a flying bird. An experiment by
Klem et al. (2004) compared the number
of birds that died as a result of vertical
windows, windows angled 20 degrees
off vertical, and windows angled 40
degrees off vertical. The angles were
randomly assigned with equal
probability to six windows and changed
daily; assume for this exercise that
windows and window locations were
identical in every respect except angle.
Over the course of the experiment, 30
birds were killed by windows in the
vertical orientation, 15 were killed by
windows set at 20 degrees off vertical,
and 8 were killed by windows set at 40
degrees off vertical.
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