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Author Question: Which of the following is not a correct interpretation of these numbers? a. In the long run about 1 ... (Read 97 times)

khang

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on: Jul 24, 2018
Which of the following is not a correct interpretation of these numbers?
 a. In the long run about 1 out of every 5 million train trips will end in a fatal derailment.
  b. The probability that you will be in a fatal train derailment is 1 in 5 million.
  c. The probability that a randomly selected train trip will end in a fatal derailment is about 1/5,000,000.
  d. None of the above, all statements are correct.

Question 2

Explain what a margin of error of 5 means for a survey result if 35 of the people from a random sample are overweight.


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Anton

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

B

Answer to Question 2

The 5 margin of error means that the difference between the population proportion of overweight people and the sample proportion of 35 will be no greater than 5 (the margin of error) in about 19 of every 20 random samples of the same size used in the survey.


khang

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Reply 2 on: Jul 24, 2018
Great answer, keep it coming :)

amandalm

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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