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Monitoring the yield of a particular chemical reaction at
Chapter 7, Problem 13SE(choose chapter or problem)
Monitoring the yield of a particular chemical reaction at various reaction vessel temperatures produces the results shown in the following table.
a. Find the least-squares estimates for \(\beta_0\), \(\beta_1\), and \(\sigma^2\) for the simple linear model \(\text {Yield}=\beta_0+\beta_1 \text { Temp}+\varepsilon\).
b. Can you conclude that \(\beta_0\) is not equal to 0?
c. Can you conclude that \(\beta_1\) is not equal to 0?
d. Make a residual plot. Does the linear model seem appropriate?
e. Find a 95% confidence interval for the slope.
f. Find a 95% confidence interval for the mean yield at a temperature of \(225^\circ \mathrm C\).
g. Find a 95% prediction interval for a yield at a temperature of \(225^\circ \mathrm C\).
Equation Transcription:
Text Transcription:
(^oC)
(^oC)
beta_0
beta_1
sigma^2
Yield=beta_0+beta_1 Temp+varepsilon
beta_0
beta_1
225^oC
225^oC
Questions & Answers
QUESTION:
Monitoring the yield of a particular chemical reaction at various reaction vessel temperatures produces the results shown in the following table.
a. Find the least-squares estimates for \(\beta_0\), \(\beta_1\), and \(\sigma^2\) for the simple linear model \(\text {Yield}=\beta_0+\beta_1 \text { Temp}+\varepsilon\).
b. Can you conclude that \(\beta_0\) is not equal to 0?
c. Can you conclude that \(\beta_1\) is not equal to 0?
d. Make a residual plot. Does the linear model seem appropriate?
e. Find a 95% confidence interval for the slope.
f. Find a 95% confidence interval for the mean yield at a temperature of \(225^\circ \mathrm C\).
g. Find a 95% prediction interval for a yield at a temperature of \(225^\circ \mathrm C\).
Equation Transcription:
Text Transcription:
(^oC)
(^oC)
beta_0
beta_1
sigma^2
Yield=beta_0+beta_1 Temp+varepsilon
beta_0
beta_1
225^oC
225^oC
ANSWER:
Step 1 of 7
(a) Let y denote the yield, and let x denote the temperature. Then the least-squares estimates for the model are,
The estimate of the error variance is the quantity given by