In the Gallup poll described in Exercise 2, 49% of those polled considered themselves to be thriving.
Question:
a) Calculate the margin of error for the proportion of all American adults who were rated as "thriving" for 99% confidence.
b) Would the margin of error be larger or smaller for 95% confidence? Explain.
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a b The margin of error for 95 conf...View the full answer
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Related Book For 
Stats Data and Models
ISBN: 978-0321986498
4th edition
Authors: Richard D. De Veaux, Paul D. Velleman, David E. Bock
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