City of Oakdale wishes to see if there is a linear relationship between the temperature and 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 (x)   73   78   85   98   93   81   76   105
Kilowatts (y)   680   760   910   1510   1170   837   600   1800

  A.No, the sample correlation coefficient is equal to 0.981, which does not provide 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.Yes, the sample correlation coefficient is equal to 0.878, which provides evidence of a significant linear relationship.   
  D.Yes, the sample correlation coefficient is equal to 0.981, which provides evidence of a significant linear relationship.   

Post Merge: 7 years ago

Data from Temperature.xlsx:

Temperature (x)   73   78   85   98   93   81   76   105
Kilowatts (y)   680   760   910   1510   1170   837   600   1800