A feeding test is conducted on a herd of 25 milking cows tocompare diets, one of
ID: 2953315 • Letter: A
Question
A feeding test is conducted on a herd of 25 milking cows tocompare diets, one of dewatered alfalfa and the other offield-wilted alfalfa. Dewatered alfalfa has an economic advantagein that it’s mechanical processing produces a liquidprotein-rich by product that can be used to supplement the feed ofother animals. A simple of 12 cows randomly selected from the herdare fed dewatered alfalfa; the remaining 13 cows are fedfield-wilted alfalfa. From observations made over a three-weekperiod, the average daily milk production in dollars recorded foreach cow is:
Field-wilted alfalfa
44
44
56
46
47
38
58
53
49
35
46
30
41
Dewatered alfalfa
35
47
55
29
40
39
32
41
42
57
51
39
-
Do the data strongly indicate that the milk yield is less withdewatered alfalfa than with field-wilted alfalfa? Test at =0.05
Field-wilted alfalfa
44
44
56
46
47
38
58
53
49
35
46
30
41
Dewatered alfalfa
35
47
55
29
40
39
32
41
42
57
51
39
-