An electric utilities company must choose between two technology options for generating electricity for its customers in the future: coal or nuclear energy. In order to assess the attitudes of local citizens, the power company conducted a public opinion poll. Four sectors were considered: news media, coal miners' union, environmentalists and conservationists, and local groups. Fifty (50) persons were randomly sampled from each sector and asked to give their opinions. The results of the survey are shown in the table below: Coal Environmentalists News Media Miner's and Local Groups Total Union Conservationists Support Coal 21 42 11 25 99 Option Support Nuclear 18 2 16 13 49 Option Neutral 11 6 23 12 52 Totals 50 50 50 50 200 Can we safely assume with 90% confidence that opinion regarding the choice of future technology options for generating electricity is independent of the type of public sector? What is the critical chi-square value for this test?

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
icon
Related questions
Topic Video
Question
An electric utilities company must choose between two technology options for generating electricity for its customers in the future: coal or nuclear energy. In
order to assess the attitudes of local citizens, the power company conducted a public opinion poll. Four sectors were considered: news media, coal miners' union,
environmentalists and conservationists, and local groups. Fifty (50) persons were randomly sampled from each sector and asked to give their opinions. The
results of the survey are shown in the table below:
Coal
Environmentalists
News Media Miner's
and
Local Groups Total
Union
Conservationists
Support Coal
21
42
11
25
99
Option
Support Nuclear
Option
18
2
16
13
49
Neutral
11
6
23
12
52
Totals
50
50
50
50
200
Can we safely assume with 90% confidence that opinion regarding the choice of future technology options for generating electricity is independent of the type
of public sector?
What is the critical chi-square value for this test?
Transcribed Image Text:An electric utilities company must choose between two technology options for generating electricity for its customers in the future: coal or nuclear energy. In order to assess the attitudes of local citizens, the power company conducted a public opinion poll. Four sectors were considered: news media, coal miners' union, environmentalists and conservationists, and local groups. Fifty (50) persons were randomly sampled from each sector and asked to give their opinions. The results of the survey are shown in the table below: Coal Environmentalists News Media Miner's and Local Groups Total Union Conservationists Support Coal 21 42 11 25 99 Option Support Nuclear Option 18 2 16 13 49 Neutral 11 6 23 12 52 Totals 50 50 50 50 200 Can we safely assume with 90% confidence that opinion regarding the choice of future technology options for generating electricity is independent of the type of public sector? What is the critical chi-square value for this test?
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 4 images

Blurred answer
Knowledge Booster
Hypothesis Tests and Confidence Intervals for Proportions
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.
Similar questions
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman