Statistics: Informed Decisions Using Data (4th Edition)

Published by Pearson
ISBN 10: 0321757270
ISBN 13: 978-0-32175-727-2

Chapter 1 - Section 1.1 - Assess Your Understanding - Applying the Concepts - Page 13: 51e

Answer

It is 95% certain that between 31% to 39% of all American adults aged 18 years or older believe that 51 cents or more of each dollar spent by the federal government is wasted.

Work Step by Step

The descriptive statistics say: "35% of the respondents ..." But, this is the percentage of the sample (1026 American adults aged 18 years or older) that believe that 51 cents or more of each dollar spent by the federal government is wasted. For the population there is a margin of error of 4%: - 35% - 4% = 31% - 35% + 4% = 39%
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