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Title: The city of Oakdale wishes to see if there is a linear relationship between the temperature and the Post by: krestik on Mar 31, 2015 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 worksheet temperature in the Excel workbook Temperature.xlsx.
Temperature.xlsx 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.No, the sample correlation coefficient is equal to 0.098, which does not provide evidence of a significant linear relationship. C.No, the sample correlation coefficient is equal to 0.981, which does not provide evidence of a significant linear relationship. D.Yes, the sample correlation coefficient is equal to 0.878, which provides evidence of a significant linear relationship. Title: Re: The city of Oakdale wishes to see if there is a linear relationship between the temperature and Post by: bio_man on Apr 1, 2015 Yes, the sample correlation coefficient is equal to 0.981, which provides evidence of a significant linear relationship.
Title: Re: The city of Oakdale wishes to see if there is a linear relationship between the temperature and Post by: krestik on Apr 1, 2015 Thank you very much :)
Title: Re: The city of Oakdale wishes to see if there is a linear relationship between the temperature and Post by: bio_man on Apr 1, 2015 You're welcome, krestik. Notice I changed the title of your topics, please mark it reflect the question like I have done next time you ask more.
Title: Re: The city of Oakdale wishes to see if there is a linear relationship between the temperature and Post by: krestik on Apr 1, 2015 Got it :)
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