For 12 straight weeks, the manager of Mr. D’s Supermarket has observed the sales
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For 12 straight weeks, the manager of Mr. D’s Supermarket has observed the sales

Question 5: Mr. D’s Supermarket

For 12 straight weeks, the manager of Mr. D’s Supermarket has observed the sales of canned tomatoes. Each week, the manager also tracks the price reduction (5 cents, 10 cents).

Use this data to determine how does the amount of price reduction influence sales.

Canned tomatoes.xlsx

Hint
Management"corr coef, r = (n*sum(XY) - sum(X)*sum(Y)) / ( sqrt(n*sum(x^2)-[sum(x)]^2) * sqrt(n*sum(y^2)-[sum(y)]^2) )corr coef, r = (12*240-6*359) / ( sqrt(12*6-[6]^2) * sqrt(12*12493-[359]^2) )corr coef, r = 0.834284 coef of determination, R^2 0.834284^2"...
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