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Author Question: A machine that produces a major part for an airplane engine is monitored closely. In the past, 10 of ... (Read 76 times)

schs14

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on: Jun 24, 2018
A machine that produces a major part for an airplane engine is monitored closely. In the past, 10 of the parts produced would be defective. With a .95 probability, the sample size that needs to be taken if the desired margin of error is .04 or less is
 a. 110
  b. 111
  c. 216
  d. 217

Question 2

A random sample of 1000 people was taken. Four hundred fifty of the people in the sample favored Candidate A. The 95 confidence interval for the true proportion of people who favors Candidate A is
 a. 0.419 to 0.481
  b. 0.40 to 0.50
  c. 0.45 to 0.55
  d. 1.645 to 1.96


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Dinolord

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

D

Answer to Question 2

A


schs14

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Reply 2 on: Jun 24, 2018
Gracias!

aliotak

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Reply 3 on: Yesterday
Wow, this really help

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