Two different methods can be used for measuring the temperature of the solution in a
Chapter 11, Problem 11-92(choose chapter or problem)
Two different methods can be used for measuring the temperature of the solution in a Hall cell used in aluminum smelting, a thermocouple implanted in the cell and an indirect measurement produced from an IR device. The indirect method is preferable because the thermocouples are eventually destroyed by the solution. Consider the following 10 measurements:(a) Construct a scatter diagram for these data, letting x thermocouple measurement and y IR measurement. (b) Fit a simple linear regression model. (c) Test for significance a regression and calculate R2 . What conclusions can you draw? (d) Is there evidence to support a claim that both devices produce equivalent temperature measurements? Formulate and test an appropriate hypothesis to support this claim. (e) Analyze the residuals and comment on model adequacy.
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