Question: This output summarizes a simple regression fit to the data on marketing Courier Paks in Example 25.1. (a) Summarize the estimated equation of the simple

This output summarizes a simple regression fit to the data on marketing Courier Paks in Example 25.1.

(a) Summarize the estimated equation of the simple regression model.
(b) The t-statistic for the slope in this model is statistically significant. Assuming the conditions of the SRM hold, what does this tell us?
(c) The variability of the two groups seems somewhat different. Why might that be the case, considering the role of the hours of promotion in this example?

100 901- 80 7 50 40 30 20 10 0.5 0.75 Aware 0 0.25 20.07035 S22.0944 n 125 Term Estimate Std Error t-Stat p-Value 2.5512 11.64

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