Suppose pl and p2 are two forecast statistics (formulae) - independent of each other - for the variable X. Assume both pl and p2 are unbiased forecasts and they have the same forecast variance v. p1+p2 Consider the mean of the two forecasts: 2 Let's call this MP. i. Is MP unbiased? How do you know? ii. What is the variance of MP? How do you know? iii. Based on the answers in parts (a) and (b) above, is MP any better in forecasting X? Why or why not?
Suppose pl and p2 are two forecast statistics (formulae) - independent of each other - for the variable X. Assume both pl and p2 are unbiased forecasts and they have the same forecast variance v. p1+p2 Consider the mean of the two forecasts: 2 Let's call this MP. i. Is MP unbiased? How do you know? ii. What is the variance of MP? How do you know? iii. Based on the answers in parts (a) and (b) above, is MP any better in forecasting X? Why or why not?
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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Problem 1P
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![a. Suppose pl and p2 are two forecast statistics (formulae) - independent of each
other - for the variable X. Assume both pl and p2 are unbiased forecasts and they
have the same forecast variance v.
Consider the mean of the two forecasts:
p1+p2
Let's call this MP.
i. Is MP unbiased? How do you know?
ii. What is the variance of MP? How do you know?
iii. Based on the answers in parts (a) and (b) above, is MP any better in
forecasting X? Why or why not?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F6b07e939-b1a8-4782-988f-4eb8c4ec201f%2Fea28e5ab-8905-426f-879b-53f328e8c6c9%2Fjzq40oyj_processed.png&w=3840&q=75)
Transcribed Image Text:a. Suppose pl and p2 are two forecast statistics (formulae) - independent of each
other - for the variable X. Assume both pl and p2 are unbiased forecasts and they
have the same forecast variance v.
Consider the mean of the two forecasts:
p1+p2
Let's call this MP.
i. Is MP unbiased? How do you know?
ii. What is the variance of MP? How do you know?
iii. Based on the answers in parts (a) and (b) above, is MP any better in
forecasting X? Why or why not?
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