Table 4.
Results of paired t-test.
Variables
CRT
FT
AS
WS
WD
TEMP
Mean difference (N)
.0010
.0037
.481
-.0039
3.5000
.800
Standard deviation
.0070
.0039
.615
.0022
4.110
.833
Standard error of the mean
.0015
.0008
.137
.0004
.919
.186
Lower 95% CI of difference
-.0023
.0018
.193
-.0049
1.576
-.932
Upper 95% CI of difference
.0043
.0056
.769
-.0029
5.424
.409
t
-value
.630
4.236
3.500
-7.987
3.808
1.190
Degrees of freedom
19
19
19
19
19
19
Two-tailed significance
.536
.000
.002
.000
.001
.000
Abbreviations: CRT = Clicker Reaction Time (msec), FT = Flying Time (sec), AS = Average Speed (km·h), WS = Wind Speed (m·sec), WD = Wind Direction (degrees), TEMP = Temperature (centigrade), CI = Confidence Interval.