Question

(b) Use the formulas to calculate the slope and intercept. (Round your answers to 3 decimal...

(b)

Use the formulas to calculate the slope and intercept. (Round your answers to 3 decimal places.)
  b1 6.02
  b0 55.178

  

(c)

Use your estimated slope and intercept to make a worksheet to calculate SSE, SSR, and SST. (Leave no cells blank - be certain to enter "0" wherever required. Negative values should be indicated by a minus sign. Do not round intermediate calculations, but final answers should be rounded to 3 decimal places.)

  

Hours Worked
(xi)		 Weekly Pay
(yi)		 Estimated Pay
(yˆi)(y^i)		 yi−yiˆyi−yi^ (yi−yˆi)2(yi−y^i)2 (yˆi−y⎯⎯)2(y^i−y¯)2 (yi−y⎯⎯)2(yi−y¯)2
13 90               
18 181                
17 216               
22 157               
37 276               

   

   
  x⎯⎯x¯ 21.4
  y⎯⎯y¯ 184
  SSE   
  SSR   
  SST   

  

(d) Calculate the R2. (Round your answer to 4 decimal places.)

  

  R2    
Math   Statistics-And-Probability   
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Homework Answers

Answer #1
xi yi yi^ yi-yi^ (yi-yi^)^2 (yi^-yibar)^2 (yi-ybar)^2
13 90 133.438 -43.438 1886.86 2556.515844 8836
18 181 163.538 17.462 304.9214 418.693444 9
17 216 157.518 58.482 3420.144 701.296324 1024
22 157 187.618 -30.618 937.4619 13.089924 729
37 276 277.918 -1.918 3.678724 8820.590724 8464
Sum= 107 920 920.03 -0.03 6553.066 12510.18626 19062
Mean= 21.4 184
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