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: A. Ha:p≥0.30Ha:p≥0.30 B. Ha:p≤0.30Ha:p≤0.30 C. Ha:p>0.30Ha:p>0.30 D. Ha:p<0.30

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: A. Ha:p≥0.30Ha:p≥0.30 B. Ha:p≤0.30Ha:p≤0.30 C. Ha:p>0.30Ha:p>0.30 D. Ha:p<0.30

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 6CST

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