A 2010 survey asked 827 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. College Grad Yes No Support Oppose 154 132 180 126 Do not Know 104 131 Total 438 389 a) What percent of college graduates and what percent of the non-college graduates in this sample do not knowenough to have an opinion on drilling for oil and natural gas off the Coast of California? b) 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.

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.4: Collecting Data
Problem 6E
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A 2010 survey asked 827 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.
College Grad
Yes
No
154
Support
Oppose
132
180
126
Do not Know
104
131
Total
438
389
a) What percent of college graduates and what percent of the non-college graduates in
this sample do not knowenough to have an opinion on drilling for oil and natural gas off
the Coast of California?
b) 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.
Transcribed Image Text:A 2010 survey asked 827 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. College Grad Yes No 154 Support Oppose 132 180 126 Do not Know 104 131 Total 438 389 a) What percent of college graduates and what percent of the non-college graduates in this sample do not knowenough to have an opinion on drilling for oil and natural gas off the Coast of California? b) 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.
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