An experiment produces the following data sample pairs: t₁:0 V₁: 4.9 0.1 3.9 0.2 3.1 0.3 2.5 0.4 2.4

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 7E
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An experiment produces the following data sample pairs:
i.
t₁: 0
Yj: 4.9
ii.
0.1
3.9
0.2
3.1
0.3
2.5
For each measurement, the y; value is recorded along the time, t₁, at which it occurs. It is proposed
to model the data as a decaying exponential as follows:
0.4
2.4
y(t) = a₁ + a₂e-5t
Show how the problem of estimating a₁ and a₂ can be expressed in matrix form as a
system of over-determined equations.
Estimate the values of a₁ and a₂ that will result in the optimum solution with respect to
the least mean squared error.
Transcribed Image Text:An experiment produces the following data sample pairs: i. t₁: 0 Yj: 4.9 ii. 0.1 3.9 0.2 3.1 0.3 2.5 For each measurement, the y; value is recorded along the time, t₁, at which it occurs. It is proposed to model the data as a decaying exponential as follows: 0.4 2.4 y(t) = a₁ + a₂e-5t Show how the problem of estimating a₁ and a₂ can be expressed in matrix form as a system of over-determined equations. Estimate the values of a₁ and a₂ that will result in the optimum solution with respect to the least mean squared error.
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