In a recent survey of 240 teachers in Richmond, Virginia, 77.2% supported standardized national testing of elementary

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In a recent survey of 240 teachers in Richmond, Virginia, 77.2% supported standardized national testing of elementary students. In a survey of 162 teachers in Raleigh, North Carolina, 64.2% supported national testing.

What is the lower confidence limit of the 99% confidence interval for the difference between the two population proportions?

A. -0.011

B. 0.011

C. 0.036

D. -0.036

Related Book For answer-question

Elementary Statistics

ISBN: 978-0538733502

11th edition

Authors: Robert R. Johnson, Patricia J. Kuby

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Posted Date: Dec 31, 2018 10:57 AM

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In a recent survey of 240 teachers in Richmond, Virginia, 77.2% supported standardized national testing of elementary

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Elementary Statistics

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