:ֲ̬δֵ֪ʱ׼

ʽ:
[b,s]=NormalIntervalStd(x)
[b,s]=NormalIntervalStd(x,a)

x:
a:Ŷ,ĬΪ0.95

b:ص1*2ľ,ʾע
s:صĵǰıע

ע:

1ıǵ

2Ǳע

3ʱֵδ֪

:
