Statistical Methods in Psychology

During the last five years there has been an inflationary trend in the average cost of a gallon of milk, as the following chart shows. Calculate the slope and the Y-intercept of the regression line by filling in the correct numbers into the correct formula in the space provided. X Year 1 Year 2 Year 3 Year 4 Year 5

 Y $1.10 $1.23 $1.30 $1.50 $1.65 62. slope = (Worth 2 points) 63. Y-intercept= 

64. Using the above data, calculate Pearson=s r correlation coefficient (show your work):