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Author Question: Using an = .04, a confidence interval for a population proportion is determined to be .65 to .75 . ... (Read 107 times)

bcretired

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on: Jun 24, 2018
Using an  = .04, a confidence interval for a population proportion is determined to be .65 to .75 . For the same data, if  is decreased, the confidence interval for the population proportion
 a. becomes narrower.
   b. becomes wider.
   c. uses a zero margin of error.
   d. remains the same.

Question 2

Which of the following exponential smoothing constant values puts the same weight on the most recent time series value as does a five-period moving average?
 a.  = .2
 b.  = .25
  c.  = .75
  d.  = .8


babybsemail

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

b

Answer to Question 2

a


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