I want all the choices (a, b, c,

MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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I want all the choices (a, b, c, d) solved

a. In an animal shelter, 100 cats and 50 dogs are being accommodated. Table below shows age group of the
cats and dogs. Is the probability of being old equal in cats and dogs? Make a hypothesis test and report a
p-value.
Dogs
Cats
Total
Old
40
70
110
Young
10
30
40
Total
50
100
150
b. In a smaller animal shelter, 12 cats and 5 dogs are being accommodated. Table below shows age group of
the cats and dogs. Is the probability of being old equal in cats and dogs? Make a hypothesis test and report
a p-value.
Dogs
Cats
Total
Old
4
7
11
Young
5
Total
12
17
c. What is the power of the test in part a?
d. How many animals should be included in the study to repeat the test with the same significance as
calculated in part a and %20 more power than calculated in part d?
Transcribed Image Text:a. In an animal shelter, 100 cats and 50 dogs are being accommodated. Table below shows age group of the cats and dogs. Is the probability of being old equal in cats and dogs? Make a hypothesis test and report a p-value. Dogs Cats Total Old 40 70 110 Young 10 30 40 Total 50 100 150 b. In a smaller animal shelter, 12 cats and 5 dogs are being accommodated. Table below shows age group of the cats and dogs. Is the probability of being old equal in cats and dogs? Make a hypothesis test and report a p-value. Dogs Cats Total Old 4 7 11 Young 5 Total 12 17 c. What is the power of the test in part a? d. How many animals should be included in the study to repeat the test with the same significance as calculated in part a and %20 more power than calculated in part d?
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