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Pdigker Pdigker
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7 years ago
What is the lower confidence limit of the 98 confidence interval for the difference in population proportions?
 
  A) -0.125
  B) 0.135
  C) -0.147
  D) 0.147

Q. 2

If X is a normal random variable with mean  = 4 and standard deviation  = 2, and Y is a normal random variable with mean  = 10 and standard deviation  = 5, then the probabilities P(X < 0 ) and P(Y < 0 ) are equal.
 
  Indicate whether the statement is true or false

Q. 3

The value of SSR is:
 
  A) 18.05
  B) 10.48
  C) 28.53
  D) 0.010

Q. 4

A nonparametric method that is equivalent to the Wilcoxon rank sum test is the:
 
  A) Wilcoxon signed rank test.
  B) Sign test.
  C) Spearman rank correlation test.
  D) Mann-Whitney U test.

Q. 5

Suppose you know that the number of complaints coming into a phone center averages 3 every ten minutes. Assume that the number of calls follows the Poisson distribution.
 
  What is the probability that there are exactly three calls during the next ten minutes?

Q. 6

The conditional probability of A, given B, must be at least as large as the probability of A.
 
  Indicate whether the statement is true or false
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cjones849cjones849
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7 years ago
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Pdigker Author
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7 years ago
Thank you, thank you, thank you!
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