A survey conducted in 2015 by the health center at a university showed that 29% of the students smoked. In 2019, a new survey was conducted on a randome sample of 80 students from this university, and it was found that 22 of them smoke. We want to check whether these data provide evidence to suggest that the percentage of students who smoke has decreased over the four year period. Do the test at 19% signficance level. Select the tail type of this test. a) Right tail b) Left tail c) Two tail d) Center
A survey conducted in 2015 by the health center at a university showed that 29% of the students smoked. In 2019, a new survey was conducted on a randome sample of 80 students from this university, and it was found that 22 of them smoke. We want to check whether these data provide evidence to suggest that the percentage of students who smoke has decreased over the four year period. Do the test at 19% signficance level. Select the tail type of this test. a) Right tail b) Left tail c) Two tail d) Center
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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A survey conducted in 2015 by the health center at a university showed that 29% of the students smoked. In 2019, a new survey was conducted on a randome sample of 80 students from this university, and it was found that 22 of them smoke. We want to check whether these data provide evidence to suggest that the percentage of students who smoke has decreased over the four year period. Do the test at 19% signficance level. Select the tail type of this test.
a) Right tailb) Left tailc) Two taild) Center
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