Question
A fitted slope is 4.2 when predicting sales from advertising expenditure measured in thousands of rupees. How should it be interpreted?
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Correct Answer: C. Each additional thousand rupees is associated with an average sales increase of 4.2 units
Explanation:
The slope is the expected change in the predicted response for a one-unit increase in the predictor. The interpretation is associational unless the study design supports a causal claim.
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