Show work please You want to create a 95% confidence interval with a margin of error of no more than 0.05 for a population proportion.  The historical data indicate that the population has remained constant at about 0.55.  What is the minimum size random sample you need to construct this interval?   223 378 381. 324 380 If the sample size for the computation of a 1-population confidence interval were tripled, how would this change the confidence interval size?   Triples the interval size Divides the interval size by 3. Mutliplies the interval size by 1.732. Divides the interval size by 1.732 Multiples the interval size by 9.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 3BGP
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You want to create a 95% confidence interval with a margin of error of no more than 0.05 for a population proportion.  The historical data indicate that the population has remained constant at about 0.55.  What is the minimum size random sample you need to construct this interval?

 

  • 223
  • 378
  • 381.
  • 324
  • 380

If the sample size for the computation of a 1-population confidence interval were tripled, how would this change the confidence interval size?

 

  • Triples the interval size
  • Divides the interval size by 3.
  • Mutliplies the interval size by 1.732.
  • Divides the interval size by 1.732
  • Multiples the interval size by 9.
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