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Author Question: A Gallup poll reported that 88 of Americans say they have health insurance. If the sample size was ... (Read 173 times)

faduma

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on: Jul 24, 2018
A Gallup poll reported that 88 of Americans say they have health insurance. If the sample size was 2500, an approximate 95 confidence interval for the proportion of all Americans who say they are insured is
 a. between 80 and 96.
  b. between 84 and 92.
  c. between 86 and 90.
  d. between 87.3 and 88.7.

Question 2

A random sample of Americans showed that 4 believe their health care is excellent. If the conservative margin of error was 12.5, what was the sample size?
 a. 25
  b. 36
  c. 49
  d. 64


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31809pancho

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Reply #1 on: Jul 24, 2018
Answer to Question 1

C

Answer to Question 2

D


faduma

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Reply #2 on: Jul 24, 2018
TY


31809pancho

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Reply #3 on: Jul 24, 2018
You're welcome


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