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Author Question: It is estimated that 3 of the athletes competing in a large tournament are users of an illegal drug ... (Read 78 times)

cabate

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on: Jun 24, 2018
It is estimated that 3 of the athletes competing in a large tournament are users of an illegal drug to enhance performance. The test for this drug is 90 accurate. What is the probability that an athlete who tests positive is actually a user?

Question 2

From a population of size 600, a simple random sample of size 58 is selected. The sample mean is 400, and the sample standard deviation is 40. An estimate of the standard error of the mean is
 a. 4.0
  b. 5.0
  c. 6.0
  d. 7.0


princessflame2016

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

0.2177

Answer to Question 2

b


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