2. Suppose we have a simple linear regression scenario: y=80+ Biz+€ But suppose it's a slightly unusual situation, in that: • By a strange quirk of fate, we know the value of 3o, so it does not need to be estimated. (We'll just leave it in the model as 3o, but it is a known value.) • The values of z are always positive, and our gut tells us that larger values of z provide less reliable information about y, so when estimating ♬ we want to give them lower weight in the estimation. We decide to estimate 3₁ by choosing to minimize: (-² Derive the estimator of 3₁.
2. Suppose we have a simple linear regression scenario: y=80+ Biz+€ But suppose it's a slightly unusual situation, in that: • By a strange quirk of fate, we know the value of 3o, so it does not need to be estimated. (We'll just leave it in the model as 3o, but it is a known value.) • The values of z are always positive, and our gut tells us that larger values of z provide less reliable information about y, so when estimating ♬ we want to give them lower weight in the estimation. We decide to estimate 3₁ by choosing to minimize: (-² Derive the estimator of 3₁.
Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter1: Functions
Section1.2: The Least Square Line
Problem 4E
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![2. Suppose we have a simple linear regression scenario:
y = + Bir +e
But suppose it's a slightly unusual situation, in that:
• By a strange quirk of fate, we know the value of Bo, so it does not need to be estimated.
(We'll just leave it in the model as &, but it is a known value.)
• The values of r are always positive, and our gut tells us that larger values of r provide less
reliable information about y, so when estimating we want to give them lower weight in
the estimation.
We decide to estimate by choosing Bn to minimize:
Derive the estimator of 31.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F059f8a44-0099-41c0-92e3-ad75d014ebad%2F817e6329-d6de-49c6-a555-7aa1ca39b5bc%2F7sakz3p_processed.png&w=3840&q=75)
Transcribed Image Text:2. Suppose we have a simple linear regression scenario:
y = + Bir +e
But suppose it's a slightly unusual situation, in that:
• By a strange quirk of fate, we know the value of Bo, so it does not need to be estimated.
(We'll just leave it in the model as &, but it is a known value.)
• The values of r are always positive, and our gut tells us that larger values of r provide less
reliable information about y, so when estimating we want to give them lower weight in
the estimation.
We decide to estimate by choosing Bn to minimize:
Derive the estimator of 31.
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