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Author Question: The decision variables of a model are also known as the a. uncontrollable output b. controllable ... (Read 198 times)

fasfsadfdsfa

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on: Jun 24, 2018
The decision variables of a model are also known as the
 a. uncontrollable output
  b. controllable inputs
 c. environmental factors
  d. projected results

Question 2

You are given the following data regarding a sample. X 16 12 21 10 13 18
 a. Compute the mean and the variance.
  b. Using the critical value approach, test to determine if the variance of the population from which this sample is taken is significantly more than 12 . Let  = 0.05.


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ricroger

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

b

Answer to Question 2

a. Sample mean = 15; Sample variance = 16.8
b. Since the test statistic 2 = 7 < 11.070, do not reject H0 and conclude there is not sufficient evidence to show the variance is significantly more than 12.


fasfsadfdsfa

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Reply 2 on: Jun 24, 2018
Thanks for the timely response, appreciate it

frankwu0507

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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