The Gallup poll asks respondents how they would rate the honesty and ethical standards of people in different fields—very high, high, average, low, or very low. In 2005, 65% of the respondents gave medical doctors a rating of “very high or high,” compared to a 67% rating for pharmacists. The results are based on a simple random sample of 1,000 persons taken in 2005; each respondent rated clergy, medical doctors, pharmacists, and many other professions. Would it be appropriate to use these values to carry out a two-sample z test to evaluate whether difference between doctors and pharmacists is real? a. yes b. no

The Gallup poll asks respondents how they would rate the honesty and ethical standards of people in different fields—very high, high, average, low, or very low. In 2005, 65% of the respondents gave medical doctors a rating of “very high or high,” compared to a 67% rating for pharmacists. The results are based on a simple random sample of 1,000 persons taken in 2005; each respondent rated clergy, medical doctors, pharmacists, and many other professions. Would it be appropriate to use these values to carry out a two-sample z test to evaluate whether difference between doctors and pharmacists is real? a. yes b. no

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section11.5: Interpreting Data

Problem 1C

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