Answer 7.12

Typeofputter <- c(rep(-1,7),rep(-1,7),rep(1,7),rep(1,7),rep(-1,7),rep(-1,7),rep(1,7),rep(1,7),rep(-1,7),rep(-1,7),rep(1,7),rep(1,7),rep(-1,7),rep(-1,7),rep(1,7),rep(1,7))
LengthofPutt <- c(rep(-1,7),rep(1,7),rep(-1,7),rep(1,7),rep(-1,7),rep(1,7),rep(-1,7),rep(1,7),rep(-1,7),rep(1,7),rep(-1,7),rep(1,7),rep(-1,7),rep(1,7),rep(-1,7),rep(1,7))
Slopeofputt <- c(rep(-1,7),rep(-1,7),rep(-1,7),rep(-1,7),rep(-1,7),rep(-1,7),rep(-1,7),rep(-1,7),rep(1,7),rep(1,7),rep(1,7),rep(1,7),rep(1,7),rep(1,7),rep(1,7),rep(1,7))
Breakofputt <- c(rep(-1,7),rep(-1,7),rep(-1,7),rep(-1,7),rep(1,7),rep(1,7),rep(1,7),rep(1,7),rep(-1,7),rep(-1,7),rep(-1,7),rep(-1,7),rep(1,7),rep(1,7),rep(1,7),rep(1,7))
Block <- c(rep(1,16),rep(2,16),rep(3,16),rep(4,16),rep(5,16),rep(6,16),rep(7,16))

DistancefromCup <- c(10,18,14,12.5,19,16,18.5, 0,16.5,4.5,17.5,20.5,17.5,33, 4,6,1,14.5,12,14,5, 0,10,34,11,25.5,21.5,0, 0,0,18.5,19.5,16,15,11, 5,20.5,18,20,29.5,19,10, 6.5,18.5,7.5,6,0,10,0, 16.5,4.5,0,23.5,8,8,8, 4.5,18,14.5,10,0,17.5,6, 19.5,18,16,5.5,10,7,36, 15,16,8.5,0,0.5,9,3, 41.5,39,6.5,3.5,7,8.5,36, 8,4.5,6.5,10,13,41,14, 21.5,10.5,6.5,0,15.5,24,16, 0,0,0,4.5,1,4,6.5, 18,5,7,10,32.5,18.5,8) 

Typeofputter <- as.fixed(Typeofputter)
LengthofPutt <- as.fixed(LengthofPutt)
Slopeofputt <- as.fixed(Slopeofputt)
Breakofputt <- as.fixed(Breakofputt)
Block <-as.random(Block)

Dat <- data.frame(LengthofPutt, Typeofputter, Breakofputt, Slopeofputt, DistancefromCup, Block)
Dat
##     LengthofPutt Typeofputter Breakofputt Slopeofputt DistancefromCup Block
## 1             -1           -1          -1          -1            10.0     1
## 2             -1           -1          -1          -1            18.0     1
## 3             -1           -1          -1          -1            14.0     1
## 4             -1           -1          -1          -1            12.5     1
## 5             -1           -1          -1          -1            19.0     1
## 6             -1           -1          -1          -1            16.0     1
## 7             -1           -1          -1          -1            18.5     1
## 8              1           -1          -1          -1             0.0     1
## 9              1           -1          -1          -1            16.5     1
## 10             1           -1          -1          -1             4.5     1
## 11             1           -1          -1          -1            17.5     1
## 12             1           -1          -1          -1            20.5     1
## 13             1           -1          -1          -1            17.5     1
## 14             1           -1          -1          -1            33.0     1
## 15            -1            1          -1          -1             4.0     1
## 16            -1            1          -1          -1             6.0     1
## 17            -1            1          -1          -1             1.0     2
## 18            -1            1          -1          -1            14.5     2
## 19            -1            1          -1          -1            12.0     2
## 20            -1            1          -1          -1            14.0     2
## 21            -1            1          -1          -1             5.0     2
## 22             1            1          -1          -1             0.0     2
## 23             1            1          -1          -1            10.0     2
## 24             1            1          -1          -1            34.0     2
## 25             1            1          -1          -1            11.0     2
## 26             1            1          -1          -1            25.5     2
## 27             1            1          -1          -1            21.5     2
## 28             1            1          -1          -1             0.0     2
## 29            -1           -1           1          -1             0.0     2
## 30            -1           -1           1          -1             0.0     2
## 31            -1           -1           1          -1            18.5     2
## 32            -1           -1           1          -1            19.5     2
## 33            -1           -1           1          -1            16.0     3
## 34            -1           -1           1          -1            15.0     3
## 35            -1           -1           1          -1            11.0     3
## 36             1           -1           1          -1             5.0     3
## 37             1           -1           1          -1            20.5     3
## 38             1           -1           1          -1            18.0     3
## 39             1           -1           1          -1            20.0     3
## 40             1           -1           1          -1            29.5     3
## 41             1           -1           1          -1            19.0     3
## 42             1           -1           1          -1            10.0     3
## 43            -1            1           1          -1             6.5     3
## 44            -1            1           1          -1            18.5     3
## 45            -1            1           1          -1             7.5     3
## 46            -1            1           1          -1             6.0     3
## 47            -1            1           1          -1             0.0     3
## 48            -1            1           1          -1            10.0     3
## 49            -1            1           1          -1             0.0     4
## 50             1            1           1          -1            16.5     4
## 51             1            1           1          -1             4.5     4
## 52             1            1           1          -1             0.0     4
## 53             1            1           1          -1            23.5     4
## 54             1            1           1          -1             8.0     4
## 55             1            1           1          -1             8.0     4
## 56             1            1           1          -1             8.0     4
## 57            -1           -1          -1           1             4.5     4
## 58            -1           -1          -1           1            18.0     4
## 59            -1           -1          -1           1            14.5     4
## 60            -1           -1          -1           1            10.0     4
## 61            -1           -1          -1           1             0.0     4
## 62            -1           -1          -1           1            17.5     4
## 63            -1           -1          -1           1             6.0     4
## 64             1           -1          -1           1            19.5     4
## 65             1           -1          -1           1            18.0     5
## 66             1           -1          -1           1            16.0     5
## 67             1           -1          -1           1             5.5     5
## 68             1           -1          -1           1            10.0     5
## 69             1           -1          -1           1             7.0     5
## 70             1           -1          -1           1            36.0     5
## 71            -1            1          -1           1            15.0     5
## 72            -1            1          -1           1            16.0     5
## 73            -1            1          -1           1             8.5     5
## 74            -1            1          -1           1             0.0     5
## 75            -1            1          -1           1             0.5     5
## 76            -1            1          -1           1             9.0     5
## 77            -1            1          -1           1             3.0     5
## 78             1            1          -1           1            41.5     5
## 79             1            1          -1           1            39.0     5
## 80             1            1          -1           1             6.5     5
## 81             1            1          -1           1             3.5     6
## 82             1            1          -1           1             7.0     6
## 83             1            1          -1           1             8.5     6
## 84             1            1          -1           1            36.0     6
## 85            -1           -1           1           1             8.0     6
## 86            -1           -1           1           1             4.5     6
## 87            -1           -1           1           1             6.5     6
## 88            -1           -1           1           1            10.0     6
## 89            -1           -1           1           1            13.0     6
## 90            -1           -1           1           1            41.0     6
## 91            -1           -1           1           1            14.0     6
## 92             1           -1           1           1            21.5     6
## 93             1           -1           1           1            10.5     6
## 94             1           -1           1           1             6.5     6
## 95             1           -1           1           1             0.0     6
## 96             1           -1           1           1            15.5     6
## 97             1           -1           1           1            24.0     7
## 98             1           -1           1           1            16.0     7
## 99            -1            1           1           1             0.0     7
## 100           -1            1           1           1             0.0     7
## 101           -1            1           1           1             0.0     7
## 102           -1            1           1           1             4.5     7
## 103           -1            1           1           1             1.0     7
## 104           -1            1           1           1             4.0     7
## 105           -1            1           1           1             6.5     7
## 106            1            1           1           1            18.0     7
## 107            1            1           1           1             5.0     7
## 108            1            1           1           1             7.0     7
## 109            1            1           1           1            10.0     7
## 110            1            1           1           1            32.5     7
## 111            1            1           1           1            18.5     7
## 112            1            1           1           1             8.0     7

We have read in the data above. Now analysing it considering each replicate as Block

Dat.Model7.12 <- lm(DistancefromCup~LengthofPutt*Typeofputter*Breakofputt*Slopeofputt+Block, data = Dat)

Dat.Model7.12a <- aov(Dat.Model7.12)
summary(Dat.Model7.12a)
##                                                   Df Sum Sq Mean Sq F value
## LengthofPutt                                       1    917   917.1  10.769
## Typeofputter                                       1    388   388.1   4.558
## Breakofputt                                        1    145   145.1   1.704
## Slopeofputt                                        1      1     1.4   0.016
## Block                                              6    189    31.5   0.370
## LengthofPutt:Typeofputter                          1    544   544.4   6.393
## LengthofPutt:Breakofputt                           1      3     2.6   0.031
## Typeofputter:Breakofputt                           1     58    58.4   0.686
## LengthofPutt:Slopeofputt                           1     44    44.0   0.517
## Typeofputter:Slopeofputt                           1     30    29.9   0.351
## Breakofputt:Slopeofputt                            1     97    96.7   1.136
## LengthofPutt:Typeofputter:Breakofputt              1      2     2.0   0.023
## LengthofPutt:Typeofputter:Slopeofputt              1    151   150.7   1.770
## LengthofPutt:Breakofputt:Slopeofputt               1     44    44.4   0.521
## Typeofputter:Breakofputt:Slopeofputt               1    275   274.9   3.227
## LengthofPutt:Typeofputter:Breakofputt:Slopeofputt  1      0     0.5   0.006
## Residuals                                         90   7665    85.2        
##                                                    Pr(>F)   
## LengthofPutt                                      0.00147 **
## Typeofputter                                      0.03549 * 
## Breakofputt                                       0.19505   
## Slopeofputt                                       0.89844   
## Block                                             0.89608   
## LengthofPutt:Typeofputter                         0.01320 * 
## LengthofPutt:Breakofputt                          0.86151   
## Typeofputter:Breakofputt                          0.40981   
## LengthofPutt:Slopeofputt                          0.47412   
## Typeofputter:Slopeofputt                          0.55511   
## Breakofputt:Slopeofputt                           0.28944   
## LengthofPutt:Typeofputter:Breakofputt             0.87938   
## LengthofPutt:Typeofputter:Slopeofputt             0.18679   
## LengthofPutt:Breakofputt:Slopeofputt              0.47210   
## Typeofputter:Breakofputt:Slopeofputt              0.07577 . 
## LengthofPutt:Typeofputter:Breakofputt:Slopeofputt 0.94022   
## Residuals                                                   
## ---
## Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1

Hence, we can see that all the p-values are not significant except the Typeofputter (0.03549) & LengthofPutt (0.00147) which are < alpha = 0.05, hence we reject the null hypothesis. Let’s run using only these two significant effects:

Dat.Model7.12b <- lm(DistancefromCup~LengthofPutt+Typeofputter+Block, data = Dat)

Dat.Model7.12c <- aov(Dat.Model7.12b)
summary(Dat.Model7.12c)
##               Df Sum Sq Mean Sq F value Pr(>F)   
## LengthofPutt   1    917   917.1  10.504 0.0016 **
## Typeofputter   1    388   388.1   4.446 0.0374 * 
## Block          6    256    42.6   0.488 0.8157   
## Residuals    103   8993    87.3                  
## ---
## Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1

Therefore, we see that after blocking & we get the p-values for Typeofputter (0.0374) & LengthofPutt (0.0016) which indicates that they are significant.