Econometrics UE Past Papers Questions.


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(2975) Question Category: Multiple choices

A phone industry manager thinks that customer monthly cell phone bill have increased, and now average over $52 per month. The company wishes to test this claim.

What is the null hypothesis for this test?

  1. H_{0}:muleq52
  2. H_{0}:mu eq52
  3. H_{0}:mu> 52
  4. H_{0}:mugeq 52
  5. H_{0}:mu= 52
  6. None of the above

Answer / Solution

UNSOLVED

(2976) Question Category: Multiple choices

Frequency Table

Days to compete a task 5 6 7 8
Frequency 4 12 8 2

Given the frequency table, what is the expected number of days for one of to complete a task?

  1. 6.50 days
  2. 6.35 days
  3. 6.31 days
  4. 6.45 days
  5. 6.41 days
  6. 6.51 days

Answer / Solution

UNSOLVED

(2977) Question Category: Multiple choices

Observed values of Y

Y 78 74 89 81 87 65 90 61 90 78 78 71 76 76
  1. What is the expected value of Y
  1. 75.63
  2. 78.14
  3. 76.89
  4. 76.98
  5. 77.90
  6. 79.21
  1. What is the sample variation of Y
  1. 79.21
  2. 77.65
  3. 81.32
  4. 75.98
  5. 76.21
  6. 75.98
  1. What is the coefficient of variation for Y
  1. 12.02 %
  2. 11.39%
  3. 13.25%
  4. 13.59%
  5. 24.24%
  6. 13.14%

Answer / Solution

UNSOLVED

(2978) Question Category: Short answers

Explain how one can detect and address the problem of multicollinearity.

Answer / Solution

UNSOLVED

(2979) Question Category: Short answers

Determine the regression line of Y on X from the following data without calculatiion.

X 11 12 13 14 15 16 17 18 19 20
Y 4 4 4 4 4 4 4 4 4 4

 

Answer / Solution

UNSOLVED

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