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The city of Oakdale wishes to see if there is a li...

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The city of Oakdale wishes to see if there is a linear relationship between the temperature and the amount of electricity used (in kilowatts). Based on the data in the table below, is there a significant linear relationship between temperature and the amount of electricity used? These data are also available in the excel workbook data.xls attached. Temperature (x) 73 78 85 98 93 81 76 105 Kilowatts (y) 680 760 910 1510 1170 837 600 1800 A. Yes, the sample correlation coefficient is equal to 0.981, which provides evidence of a significant linear relationship. B. Yes, the sample correlation coefficient is equal to 0.878, which provides evidence of a significant linear relationship. C. No, the sample correlation coefficient is equal to 0.098, which does not provide evidence of a significant linear relationship. D. No, the sample correlation coefficient is equal to 0.981, which does not provide evidence of a significant linear relationship.

 

Paper#11542 | Written in 18-Jul-2015

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