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An experiment was performed to determine whether the annealing temperature of ductile iron affects its tensile strength. Five specimens were annealed at each of four temperatures. The tensile strength (in ksi) was measured for each. The results are presented in the following table. Temperature (*C) Sample Values 750 19.72 20.88 19.63 18.68 17.89 800 16.01 20.04 18.10 20.28 20.53 850 16.66 17.38 14.49 18.21 15.58 900 16.93 14.49 16.15 15.53 13.25 a Construct an ANOVA table. You may give a range for the P-value. b. Can you conclude that there are differences among the mean strengths?

An experiment was performed to determine whether the annealing temperature of ductile iron affects its tensile strength. Five specimens were annealed at each of four temperatures. The tensile strength (in ksi) was measured for each. The results are presented in the following table. Temperature (*C) Sample Values 750 19.72 20.88 19.63 18.68 17.89 800 16.01 20.04 18.10 20.28 20.53 850 16.66 17.38 14.49 18.21 15.58 900 16.93 14.49 16.15 15.53 13.25 a Construct an ANOVA table. You may give a range for the P-value. b. Can you conclude that there are differences among the mean strengths?

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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An experiment was performed to determine whether the annealing temperature of ductile iron affects its tensile strength. Five specimens were annealed at each of four temperatures. The tensile strength (in ksi) was measured for each. The results are presented in the following table. Temperature (*C) Sample Values 750 19.72 20.88 19.63 18.68 17.89 800 16.01 20.04 18.10 20.28 20.53 850 16.66 17.38 14.49 18.21 15.58 900 16.93 14.49 16.15 15.53 13.25 a Construct an ANOVA table. You may give a range for the P-value. b. Can you conclude that there are differences among the mean strengths?
Transcribed Image Text:An experiment was performed to determine whether the annealing temperature of ductile iron affects its tensile strength. Five specimens were annealed at each of four temperatures. The tensile strength (in ksi) was measured for each. The results are presented in the following table. Temperature (*C) Sample Values 750 19.72 20.88 19.63 18.68 17.89 800 16.01 20.04 18.10 20.28 20.53 850 16.66 17.38 14.49 18.21 15.58 900 16.93 14.49 16.15 15.53 13.25 a Construct an ANOVA table. You may give a range for the P-value. b. Can you conclude that there are differences among the mean strengths?
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