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Author Question: In a survey of 280 adults over 50, 70 said they were taking vitamin supplements. Find the margin of ... (Read 69 times)

ETearle

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on: Jul 25, 2018
In a survey of 280 adults over 50, 70 said they were taking vitamin supplements. Find the margin of error for the 99 confidence interval used to estimate the population proportion. Give your answer as a percentage.
 
  A) 5.37 B) 7.05 C) 19.7 D) 9.8 E) 12.9

Question 2

The probability that Luis will pass his statistics test is 0.44. Find the probability that he will fail his statistics test.
 
  A) 2.27 B) 0.56 C) 0.79 D) 0.22


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fraziera112

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Reply #1 on: Jul 25, 2018
Answer to Question 1

B

Answer to Question 2

B


ETearle

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Reply 2 on: Jul 25, 2018
YES! Correct, THANKS for helping me on my review

peter

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Reply 3 on: Yesterday
Gracias!

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