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) Cups of coffee (x) 12 10 10 5 5 3 5 1 1 2 3 4 4 Unless otherwise stated, you can round values to two decimal places. a) Using regression to find a linear equation for ŷ. Write in the form: a + bx. Round a and b to three decimal places. %3D b) Find the correlation coefficient. Round to three or four decimals. r = c) Does the correlation coefficient indicate a strong linear trend, a weak linear trend, or no linear trend? O strong linear trend O weak linear trend O no linear trend

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) Cups of coffee (x) 12 10 10 5 5 3 5 1 1 2 3 4 4 Unless otherwise stated, you can round values to two decimal places. a) Using regression to find a linear equation for ŷ. Write in the form: a + bx. Round a and b to three decimal places. %3D b) Find the correlation coefficient. Round to three or four decimals. r = c) Does the correlation coefficient indicate a strong linear trend, a weak linear trend, or no linear trend? O strong linear trend O weak linear trend O no linear trend

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter7: Analytic Trigonometry

Section7.6: The Inverse Trigonometric Functions

Problem 94E

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