Author Question: The sum of the differences between observed values and the group mean for a given set of ... (Read 73 times)

LCritchfi

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The sum of the differences between observed values and the group mean for a given set of observations is known as the _____.
 a. within-group error
  b. between-groups variance
  c. F-ratio
  d.  statistic

Question 2

Which of the following has prompted an even faster expansion and use of electronic communications and cellular network?
 a. wire revolution c. wireless revolution
  b. digital revolution d. None of the above.



irishcancer18

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Answer to Question 1

A

Answer to Question 2

C
The wireless revolution and the World Wide Web has opened up a vast communications network for use in marketing communications.



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