37 29 16 null hypothesis? no Z 213 321 534 300 350 650
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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Question

Transcribed Image Text:In Bloomington, they randomly sampled 300 female voters, and 350 male voters. They collected data on
the respondent's opinion on an environmental bond issue. We want to know whether there is good evidence
that one's gender influences whether a person is for or against the bond issue. Use a = 0.05.
Men
Women
Total
For Bond Issue Against Bond Issue
87
29
116
Men
a) What is the correct null hypothesis?
○ Ho: P₁
P2 P3 P4
O Ho: P1 P2 = P3 P4
O Ho: Gender and Bond Issue Attitudes are dependent.
Ho: Gender and Bond Issue Attitudes are Independent.
Women
b) Fill in the expected values, round answers to 1 decimal place.
Expected
Values
Against
Bond Issue
246.5
Degree's of Freedom =
For Bond Issue
d) The p-value =
53.5
c) Chi Square Test Statistic =
62.5
213
321
534
1
00
287.5
Total
300
350
650
1 decimal place
3 decimal places
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