Refer to Exercise 1, where we are trying to link daily temperature (x) and coffee sales (y).

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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. Show the 95% prediction interval for coffee sales tomorrow, when the high temperature will be 68 degrees. 
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Understanding Business Statistics

ISBN: 978-1118145258

1st edition

Authors: Stacey Jones, Tim Bergquist, Ned Freed

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