What is the predicted number of people

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An office manager has noticed that there is a relationship between the number of people, who complain about his attitude, and the number of cups of coffee he drinks. From eight days of tracking he has compiled the following data:

Cups of Coffee (x1 1 2 3 3 4 5 5

Number of People (y11 12 11 8 9 9 6 5

a) Find the correlation coefficient (Please round your answer to two decimal places) r = _____________

b) Find the linear equation for the above data (Please round your answer to two decimal places) y = _____________________X + _________________

c) Using the equation from part (b), what is the predicted (average) number of people that will complain about his attitude if he drinks 2 cup(s) of coffee? (Please round your answer to two decimal places) _____________________

Reference no: EM131888860

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