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Question: data was collected in order to investigate the effect of...

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Data was collected in order to investigate the effect of temperature on the yield of a chemical process. Temperatures were set at eight specific levels, and the yield was determined for five replications at each level 4. Identify the response variable and the predictor variable. Explain your reasoning. Describe the two sources of variation (variation due to regression and variation about the regression) in terms of this particular problem (using the variables described above). In this particular case, are we investigating for association or causation? Defend your answer. a. b. c.
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