Which distribution is used in testing the hypotheses about the ...

[RODY.ELKHALIL]

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

[ambernicolefink]

Answer to Question 1

B

Answer to Question 2

A

[RODY.ELKHALIL]

Thank you

[ambernicolefink]

No problemo