Observations on the yield of a chemical reaction taken at various temperatures were recorded as follows: X (°C) y(%) z (°C) H y(%) 150 75.4 150 77.7 150 81.2 200 84.4 200 85.5 200 85.7 250 89.0 250 89.4 250 90.5 300 94.8 300 96.7 300 95.3 What is the least square estimate of the intercept? Round-off final answer to 2 decimal places.

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Author:Amos Gilat
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Observations on the yield of a chemical reaction taken at various temperatures were recorded as
follows:
X
y(%)
2 (°C)
(%)
150
75.4
150
77.7
150
81.2
200
84.4
200
85.5
200
85.7
250
89.0
250
89.4
250
90.5
300
94.8
300
96.7
300
95.3
What is the least square estimate of the intercept? Round-off final answer to 2 decimal places.
Transcribed Image Text:Observations on the yield of a chemical reaction taken at various temperatures were recorded as follows: X y(%) 2 (°C) (%) 150 75.4 150 77.7 150 81.2 200 84.4 200 85.5 200 85.7 250 89.0 250 89.4 250 90.5 300 94.8 300 96.7 300 95.3 What is the least square estimate of the intercept? Round-off final answer to 2 decimal places.
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