A biologist wishes to know if the mean masses of starlings sampled in four different roost situations are different. A sample of 10 units (starlings) obtained from each situation. Carry out the ANOVA test to check for differences.
DATA
|
Sample 1
|
Sample 2
|
Sample 3
|
Sample 4
|
|
78
|
78
|
79
|
77
|
|
88
|
78
|
73
|
69
|
|
87
|
83
|
79
|
75
|
|
88
|
81
|
75
|
70
|
|
83
|
78
|
77
|
74
|
|
82
|
81
|
78
|
83
|
|
81
|
81
|
80
|
80
|
|
80
|
82
|
78
|
75
|
|
80
|
76
|
83
|
76
|
|
89
|
76
|
84
|
75
|