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Author Question: Which distribution is used in testing the hypotheses about the equality of two population variances? ... (Read 108 times)

RODY.ELKHALIL

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on: Jun 24, 2018
Which distribution is used in testing the hypotheses about the equality of two population variances?
 
  A) z-distribution
  B) F-distribution
  C) x2 distribution
  D) t-distribution

Question 2

A local FedEx/Kinkos has three black-and-white copy machines and two color copiers. Based on historical data, the chances that each black-and-white copier will be down for repairs is 0.10.
 
  The color copiers are more of a problem and are down 20 of the time each.Based on this information, what is the probability that if a customer needs a color copy, both color machines will be down for repairs?A) 0.04
  B) 0.96
  C) 0.47
  D) 0.42


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ambernicolefink

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

B

Answer to Question 2

A


RODY.ELKHALIL

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Reply #2 on: Jun 24, 2018
Thank you


ambernicolefink

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Reply #3 on: Jun 24, 2018
No problemo


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