The alternative hypothesis is:
Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015
1st Edition
ISBN:9781680331141
Author:HOUGHTON MIFFLIN HARCOURT
Publisher:HOUGHTON MIFFLIN HARCOURT
Chapter11: Data Analysis And Displays
Section: Chapter Questions
Problem 1CA
Related questions
Question
Hypothesis Testing Proportions
Over the past few decades, public health officials have examined the link between weight concerns and teen girls' smoking. Researchers surveyed a group of 273 randomly selected teen girls living in Massachusetts (between 12 and 15 years old). After four years the girls were surveyed again. 63 said they smoked to stay thin. Is there good enough evidence that more than 30% of the teen girls smoke to stay thin? The alternative hypothesis is:
- Ha:p≤0.30Ha:p≤0.30
- Ha:p>0.30Ha:p>0.30
- Ha:p<0.30Ha:p<0.30
- Ha:p≥0.30
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