TABLE VIII
Means, Variances, Dispersion, and Conjdence Intervals of Pupal Density in April
1
2
3
4
5
6
7
~
8
Mean
Coefficient
95% Range of
Standard
Number
number of
of
coefficient of
deviation
Confidence
Year
of m2
pupae/m2
Variance
dispersion
dispersion
of mean
intervals
1951
1952
,1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
24
18
22
24
24
24
24
24
24
24
24
24
24
24
5 -42
3.57
0.73
3.00
3.00
2-58
1-87
0.12
0.87
1.13
2-25
3.38
5.04
4-63
8-28
5.91
0.78
4-70
5.22
3.83
1-80
0.11
0.81
1.68
4.11
7 -03
13-35
6.86
1-52
1 *66
1.07
1 *57
1.74
1.48
1.08
0.92
0.93
1 *49
1.83
2.08
2.65
1 *48
0.398 - 1.602
0.294 - 1.706
0.368 - 1.632
0.398 - 1.602
0.398 - 1.602
0.398 - 1,602
0.398 - 1.602
0.398 - 1.602
0.398 - 1.602
0.398 - 1.602
0.398 - 1.602
0.398 - 1.602
0.398 - 1.602
0.398 - 1.602
0.57
0.57
0.19
0.44
0-47
0.40
0.27
0.02
0.18
0.27
0.41
0 -54
0.75
0.53
4.28 - 6-56
2.43 - 4.71
0.35 - 1-11
2.12 - 3.88
2.06 - 3.94
1.78 - 3.38
1.13 - 2.21
0.08 - 0.16
0.51 - 1.23
0.59 - 1.67
1.43 - 3.07
2.30 - 4.46
3.54 - 6.54
3.57 - 5.69