A 2010 survey asked 870 randomly sampled registered voters in California "Do you support? Or do y oppose? Drilling for oil and natural gas off the Coast of California? Or do you not know enough to say Below is the distribution of responses, separated based on whether or not the respondent graduated from college

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
Question

Could someone help with the first couple of part? I don't understand it, thanks!

A 2010 survey asked 870 randomly sampled registered voters in California "Do you support? Or do you
oppose? Drilling for oil and natural gas off the Coast of California? Or do you not know enough to say?"
Below is the distribution of responses, separated based on whether or not the respondent graduated
from college
(a) What percent of college graduates in this sample do not know enough to have an opinion on drilling
for oil and natural gas off the Coast of California?
%
College Grad
Yes
No
(b) What percent of the non-college graduates in this sample do not know enough to have an opinion
on drilling for oil and natural gas off the Coast of California?
%
(d) Find the positive critical value.
150
133
Support
Oppose
180 130
Do not know 105 131
Total
435 394
Conduct a hypothesis test to determine if the data provide strong evidence that the proportion of
college graduates who do not have an opinion on this issue is different than that of non-college
graduates. Test this claim at the 0.05 significance level.
(c) Find the test statistic. The standard error is 0.0313844.
(e) Find the negative critical value.
(f) Find the p-value.
arras
Transcribed Image Text:A 2010 survey asked 870 randomly sampled registered voters in California "Do you support? Or do you oppose? Drilling for oil and natural gas off the Coast of California? Or do you not know enough to say?" Below is the distribution of responses, separated based on whether or not the respondent graduated from college (a) What percent of college graduates in this sample do not know enough to have an opinion on drilling for oil and natural gas off the Coast of California? % College Grad Yes No (b) What percent of the non-college graduates in this sample do not know enough to have an opinion on drilling for oil and natural gas off the Coast of California? % (d) Find the positive critical value. 150 133 Support Oppose 180 130 Do not know 105 131 Total 435 394 Conduct a hypothesis test to determine if the data provide strong evidence that the proportion of college graduates who do not have an opinion on this issue is different than that of non-college graduates. Test this claim at the 0.05 significance level. (c) Find the test statistic. The standard error is 0.0313844. (e) Find the negative critical value. (f) Find the p-value. arras
Expert Solution
steps

Step by step

Solved in 4 steps with 7 images

Blurred answer
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