Question: Refer to Exercise 1, where we are trying to link daily temperature (x) and coffee sales (y). The estimated regression equation turned out to be

Refer to Exercise 1, where we are trying to link daily temperature (x) and coffee sales (y). The estimated regression equation turned out to be ŷ = 660 – 6.8x. Can we reject the null hypothesis that the population slope is 0, at the 5% significance level? Explain the implications of your answer.

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The estimated regression equation is 660 68 x x y y y 2 x x 2 50 350 320 30 900 20 40... View full answer

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