
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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9.3 Q2
need t statistic
p value

Transcribed Image Text:Researchers collected data on the numbers of hospital admissions resulting from motor vehicle crashes, and results are given below for Fridays on the 6th of a
month and Fridays on the following 13th of the same month. Use a 0.05 significance level to test the claim that when the 13th day of a month falls on a Friday,
the numbers of hospital admissions from motor vehicle crashes are not affected.
Friday the 6th:
Friday the 13th:
9
t
14
What are the hypotheses for this test?
Let μd be the
Ho Hd = 0
H₁ H 0
5
12
Find the value of the test statistic.
mean of the differences
12
15
12
11
(Round to three decimal places as needed.)
3
5
60
14
G
in the numbers of hospital admissions resulting from motor vehicle crashes for the population of all pairs of data.
4
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