WINE

Data:
                                             
   response rating temp contact bottle judge
1        36      2 cold      no      1     1
2        48      3 cold      no      2     1
3        47      3 cold     yes      3     1
4        67      4 cold     yes      4     1
5        77      4 warm      no      5     1
6        60      4 warm      no      6     1
7        83      5 warm     yes      7     1
8        90      5 warm     yes      8     1
9        17      1 cold      no      1     2
10       22      2 cold      no      2     2
11       14      1 cold     yes      3     2
12       50      3 cold     yes      4     2
13       30      2 warm      no      5     2
14       51      3 warm      no      6     2
15       90      5 warm     yes      7     2
16       70      4 warm     yes      8     2
17       36      2 cold      no      1     3
18       50      3 cold      no      2     3
19       42      3 cold     yes      3     3
20       23      2 cold     yes      4     3
21       80      5 warm      no      5     3
22       81      5 warm      no      6     3
23       73      4 warm     yes      7     3
24       62      4 warm     yes      8     3
25       46      3 cold      no      1     4
26       27      2 cold      no      2     4
27       48      3 cold     yes      3     4
28       32      2 cold     yes      4     4
29       57      3 warm      no      5     4
30       37      2 warm      no      6     4
31       84      5 warm     yes      7     4
32       58      3 warm     yes      8     4
33       26      2 cold      no      1     5
34       45      3 cold      no      2     5
35       61      4 cold     yes      3     5
36       41      3 cold     yes      4     5
37       48      3 warm      no      5     5
38       41      3 warm      no      6     5
39       58      3 warm     yes      7     5
40       55      3 warm     yes      8     5
41       46      3 cold      no      1     6
42       30      2 cold      no      2     6
43       54      3 cold     yes      3     6
44       37      2 cold     yes      4     6
45       32      2 warm      no      5     6
46       60      4 warm      no      6     6
47       88      5 warm     yes      7     6
48       73      4 warm     yes      8     6
49       13      1 cold      no      1     7
50       19      1 cold      no      2     7
51       31      2 cold     yes      3     7
52       29      2 cold     yes      4     7
53       22      2 warm      no      5     7
54       43      3 warm      no      6     7
55       32      2 warm     yes      7     7
56       49      3 warm     yes      8     7
57       25      2 cold      no      1     8
58       32      2 cold      no      2     8
59       39      2 cold     yes      3     8
60       40      3 cold     yes      4     8
61       51      3 warm      no      5     8
62       45      3 warm      no      6     8
63       42      3 warm     yes      7     8
64       67      4 warm     yes      8     8
65       12      1 cold      no      1     9
66       29      2 cold      no      2     9
67       47      3 cold     yes      3     9
68       28      2 cold     yes      4     9
69       47      3 warm      no      5     9
70       38      2 warm      no      6     9
71       72      4 warm     yes      7     9
72       65      4 warm     yes      8     9

Description:

The wine data set from a factorial experiment on factors determining the bitterness of wine. Two treatment factors (temperature and contact) each have two levels. Temperature and contact between juice and skins can be controlled when cruching grapes during wine production. Nine judges each assessed wine from two bottles from each of the four treatment conditions, hence there are 72 observations in all.

Format:

- response
scorings of wine bitterness on a 0—100 continuous scale.

- rating
ordered factor with 5 levels; a grouped version of response.

- temp
temperature: factor with two levels.

- contact
factor with two levels ("no" and "yes").

- bottle
factor with eight levels.

- judge
factor with nine levels.

Task:

Model the bitterness on a continuous scale and on the factor one as well.