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Author Question: It is known that the population variance equals 484 . With a .95 probability, the sample size that ... (Read 89 times)

awywial

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  • Posts: 577
on: Jun 24, 2018
It is known that the population variance equals 484 . With a .95 probability, the sample size that needs to be taken to estimate the population mean if the desired margin of error is 5 or less is
 a. 25
  b. 74
  c. 189
  d. 75

Question 2

The skewness measure for exponential distributions is _____.
 a. 0
  b. 1
  c. 2
  d. 3


jaymee143

  • Sr. Member
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  • Posts: 341
Reply #1 on: Jun 24, 2018
Answer to Question 1

d

Answer to Question 2

c


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