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jk56 jk56
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6 years ago
Find the 95 confidence for the difference between the two population mean scores.
 
  A) 7.13  13.29
  B) 7.13  0.97
  C) 7.13  14.26
  D) 7.13  6.16

Q. 2

Determine the sum of the median values that are obtained to assess the effect of seasonality in each quarter.
 
  A) 154.88
  B) 359.08
  C) 393.36
  D) 400

Q. 3

Find the probability at least 3 children do not recognize their mother's voice.
 
  What will be an ideal response?

Q. 4

What is the probability that both man and woman are working?
 
  What will be an ideal response?

Q. 5

The supervisor of a tourist information desk at a local airport is interested in how long it takes an employee to serve a customer. Using a stopwatch, he measures the amount of time it takes for each of 10 customers.
 
  These times, measured in minutes, are reported as follows: 2.3, 1.5, 3.9, 0.6, 2.7, 3.1, 2.8, 0.9, 1.4, and 2.6. Calculate the standard deviation and the interquartile range.

Q. 6

Which of the following tests employs matched-pairs sampling?
 
  A) The Wilcoxon signed rank test
  B) The Wilcoxon rank sum test
  C) The Mann-Whitney test
  D) The Durbin-Watson test
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thientrang2310thientrang2310
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6 years ago
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jk56 Author
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#2
6 years ago
Dude, you're awesome. I wish I had you as my teacher!
wrote...
#3
6 years ago
Come to the forum always, I'll be around to assist you again
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