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Textbook ExpertVerified Tutor
11 Nov 2021

Given information

As per the given question,

  • On May , Gallup reported that of the  people surveyed, % of U.S. workers believe that they will continue working past retirement age.
  • The confidence level for this study was reported at % with a ±% margin of error.

 

To find:- Part (b). Determine the sample size.

Step-by-step explanation

Step 1.

As per the given question,

  • Let the sample size be expressed as
  • Gallup surveyed people.
  • Hence, the sample size is   

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Introductory Statistics
OER Edition, 2013
Openstax
ISBN: 9781938168208

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