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Case 1-driving speed and miles per gallon

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Case 1:Driving Speed and Miles per Gallon

A department of transportation's study on driving speed and miles per gallon for midsize automobiles resulted in the following data:

Speed (Miles per Hour) 30 50 40 55 30 25 60 25 50 55

Miles per Gallon 29 24 24 24 32 31 24 36 27 24

Required Tasks to be solved: please compute each requirements step by step. thanks

1. How can Develop a scatter diagram first and then explain in your own words the relationship between the driving speed and miles per gallon for midsize automobiles?

2. How to Compute the sample correlation coefficient? What does this value tell us about the relationship between driving speed and miles per gallon for midsize automobiles? Explain step by step please.

Reference no: EM132848972

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