Question

A retail merchant want to determine the relation between weekly advertising expenditures ('000 rupees) and sales ('000 rupees). The following data were recorded: Advt costs 40 Sales 35 20 40 25 40 15 Marks] 30 45 50 30 20 35 40 45 20 40 (a) Fit a simple linear regression of sales on advertising expenditure (b) Predict Sales for given advertisement expenditure of 25. Interpret the results 30 55 40 55​

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