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THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
It was hypothesized that the number of bottles of an imported premium beer sold per evening in the restaurants of a city depends linearly on the average costs of meals in the restaurants.The following results were obtained for a sample of n = 20 restaurants,of approximately equal size,
= 30.0,
= 18.8,
= 412,
= 212
Where,y = Number of bottles sold per evening and x = Average costs,in dollars,of a meal.
-Determine the sample regression line.
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