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Author Question: Which of the following components in the time series is more likely to exhibit the relative steady ... (Read 42 times)

SAVANNAHHOOPER23

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on: Jun 24, 2018
Which of the following components in the time series is more likely to exhibit the relative steady growth of the population of Egypt from 1959 to 2009?
 
  A) the trend component
  B) the cyclical component
  C) the seasonal component
  D) the irregular component

Question 2

The manager of the help-line at a local software manufacturing firm collected data on the number of calls the help desk received per shift for the last 100 days. The data is summarized in the table below.
 
   of Calls 80 but
  < 120 120 but
  < 160 160 but
  < 200 200 but
  < 240 240 but
  < 280 280 but
  < 320
   of Days 1 21 29 32 15 2
 
  What is the estimated mean number of calls per night? What is the estimated standard deviation?


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dyrone

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

A

Answer to Question 2

Mean = 198, standard deviation = 43.06.


SAVANNAHHOOPER23

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Reply 2 on: Jun 24, 2018
Great answer, keep it coming :)

xiaomengxian

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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