4. In 1983, the Department of Dairy Science at the Virginia Polytechnic Institute and State University conducted an experiment to study the effect of feed rations, differing by source of protein, on the average daily milk production of cows. There were 5 rations used in the experiment. A 5x5 Latin square was used in which the rows represented different cows and the columns were different lactation periods. The following data, recorded in kilograms, were analyzed by the Statistical Consulting Center at Virginia Tech. At the 0.01 level of significance, can we conclude that rations with different sources of protein have an effect on the average daily milk production of cows? Lactation Cows Period 1 2 B 3 4 A E 1 33.9 33.1 D 34.4 26.4 34.6 E B 30.7 28.7 24.9 28.8 28.0 D E A 3 28.7 28.8 20.0 31.9 22.7 E A В |C D 4 31.4 22.3 18.7 31.0 21.3 B |C D E A 28.9 22.3 15.8 Actioe Windos 2.

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4. In 1983, the Department of Dairy Science at the Virginia
Polytechnic Institute and State University conducted an experiment
to study the effect of feed rations, differing by source of protein, on
the average daily milk production of cows. There were 5 rations
used in the experiment. A 5x5 Latin square was used in which the
rows represented different cows and the columns were different
lactation periods. The following data, recorded in kilograms, were
analyzed by the Statistical Consulting Center at Virginia Tech. At
the 0.01 level of significance, can we conclude that rations with
different sources of protein have an effect on the average daily
milk production of cows?
Lactation
Cows
Period
1
3
4
A
В
C
D
E
1
33.1
34.4
26.4
34.6
33.9
D
E
A
В
2
30.7
28.7
24.9
28.8
28.0
D
E
А
В
3
28.7
28.8
20.0
31.9
22.7
E
A
В
C
D
4
31.4
22.3
18.7
31.0
21.3
B
C
D
E
A
Actie Windoys
Go to PC settings to activate W
28.9
22.3
15.8
Transcribed Image Text:4. In 1983, the Department of Dairy Science at the Virginia Polytechnic Institute and State University conducted an experiment to study the effect of feed rations, differing by source of protein, on the average daily milk production of cows. There were 5 rations used in the experiment. A 5x5 Latin square was used in which the rows represented different cows and the columns were different lactation periods. The following data, recorded in kilograms, were analyzed by the Statistical Consulting Center at Virginia Tech. At the 0.01 level of significance, can we conclude that rations with different sources of protein have an effect on the average daily milk production of cows? Lactation Cows Period 1 3 4 A В C D E 1 33.1 34.4 26.4 34.6 33.9 D E A В 2 30.7 28.7 24.9 28.8 28.0 D E А В 3 28.7 28.8 20.0 31.9 22.7 E A В C D 4 31.4 22.3 18.7 31.0 21.3 B C D E A Actie Windoys Go to PC settings to activate W 28.9 22.3 15.8
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