A particular professor has noticed that the number of people, y, who complain about his attitude is dependent on the number of cups of coffee, x, he drinks. From eight days of tracking he compiled the following data: People (y) 10 10 9 11 7 6 5 5 Cups of coffee (x) 1 1 2 2 3 4 5 5 Unless otherwise stated, you can round values to two decimal places. a) Using regression to find a linear equation for ˆyy^ . Round to three decimal places. ˆyy^ = b) Find the correlation coefficient. Round to three or four decimals. rr = c) Does the correlation coefficient indicate a strong linear trend, a weak linear trend, or no linear trend? strong linear trend weak linear trend no linear trend d) Use your model to predict the number of people that will complain about his attitude if he drinks 10 cups of coffee.

A particular professor has noticed that the number of people, y, who complain about his attitude is dependent on the number of cups of coffee, x, he drinks. From eight days of tracking he compiled the following data: People (y) 10 10 9 11 7 6 5 5 Cups of coffee (x) 1 1 2 2 3 4 5 5 Unless otherwise stated, you can round values to two decimal places. a) Using regression to find a linear equation for ˆyy^ . Round to three decimal places. ˆyy^ = b) Find the correlation coefficient. Round to three or four decimals. rr = c) Does the correlation coefficient indicate a strong linear trend, a weak linear trend, or no linear trend? strong linear trend weak linear trend no linear trend d) Use your model to predict the number of people that will complain about his attitude if he drinks 10 cups of coffee.

Trigonometry (MindTap Course List)

8th Edition

ISBN:9781305652224

Author:Charles P. McKeague, Mark D. Turner

Publisher:Charles P. McKeague, Mark D. Turner

Chapter4: Graphing And Inverse Functions

Section: Chapter Questions

Problem 6GP: If your graphing calculator is capable of computing a least-squares sinusoidal regression model, use...

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People (y)	10	10	9	11	7	6	5	5
Cups of coffee (x)	1	1	2	2	3	4	5	5

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