according to a l a communications ad a smart phone (one which the user can use to read email and su professor at a university believes this percentage ity college st

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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Question 8
According to a Pew Research Center study, in May 2011, 42% of all American adults
had a smart phone (one which the user can use to read email and surf the Internet).
A communications professor at a university believes this percentage is higher among
community college students. She selects 376 community college students at random and finds that 176 of
them have a smart phone. Then in testing the hypotheses:
Hg: P-0.42 versus
Ha:p>0.42.
what is the test statistic?
(Please round your answer to two decimal places)
Transcribed Image Text:Question 8 According to a Pew Research Center study, in May 2011, 42% of all American adults had a smart phone (one which the user can use to read email and surf the Internet). A communications professor at a university believes this percentage is higher among community college students. She selects 376 community college students at random and finds that 176 of them have a smart phone. Then in testing the hypotheses: Hg: P-0.42 versus Ha:p>0.42. what is the test statistic? (Please round your answer to two decimal places)
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