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Author Question: The variance of the difference between two sample proportions equals the ____________________ of ... (Read 50 times)

mia

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on: Jun 24, 2018
The variance of the difference between two sample proportions equals the ___________________ _ of their population proportion variances.
 Fill in the blank(s) with correct word

Question 2

In determining monthly seasonal indexes for gas consumption, the sum of the 12 means for gas consumption as a percentage of the moving average is 1150 . To get the seasonal indexes, each of the 12 monthly means is to be multiplied by:
 a. 1150 / 1200
  b. (1200 + 1150) / 12
  c. (1150 + 12) / 1200
  d. 1200 / 1150


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BAOCHAU2803

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

sum

Answer to Question 2

D


mia

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Reply #2 on: Jun 24, 2018
Thank you


BAOCHAU2803

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Reply #3 on: Jun 24, 2018
No problemo


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