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Jason believes that the sales of coffee at his coffee shop depend upon the weather. He has taken a ...

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Jason believes that the sales of coffee at his coffee shop depend upon the weather. He has taken a ...

Jason believes that the sales of coffee at his coffee shop depend upon the weather. He has taken a sample of 6 days. Below you are given the results of the sample.

Cups of Coffee Sold	Temperature
350	50
200	60
210	70
100	80
60	90
40	100

a.	Which variable is the dependent variable?
b.	Compute the least squares estimated line.
c.	Compute the correlation coefficient between temperature and the sales of coffee.
d.	Is there a significant relationship between the sales of coffee and temperature? Use a .05 level of significance. Be sure to state the null and alternative hypotheses.
e.	Predict sales of a 90 degree day.

Textbook

Essentials of Statistics for Business and Economics

Edition: 7^th

Authors: Anderson, Sweeney, Williams, Camm, Cochran

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mars03 Author

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Thanks for your help!!

bioc

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Helped a lot

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You make an excellent tutor!

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