Hp Prime Graphing Wireless Calculator Manuale Utente Pagina 165

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Functions and commands 161
ConfZ1mean The one-sample Normal confidence interval for a mean.
Returns a list containing (in order):
The lower critical Z-value
The lower bound of the confidence interval
The upper bound of the confidence interval
ConfZ1mean( ,n,σ
,
C)
Example:
ConfZ1mean(0.461368, 50, 0.2887, 0.95) returns {-
1.9599…, 0.3813…, 0.5413…}
ConfZ2mean The two-sample Normal confidence interval for the difference
of two means. Returns a list containing (in order):
The lower critical Z-value
The lower bound of the confidence interval
The upper bound of the confidence interval
ConfZ2mean( , , n
1
,n
2
,σ
1
,σ
2
,C)
Example:
ConfZ2mean(0.461368, 0.522851, 50, 50, 0.2887,
0.2887, 0.95) returns {-1.9599…,
-0.1746…, 0.0516…)}
ConfZ1prop The one-sample Normal confidence interval for a proportion.
Returns a list containing (in order):
The lower critical Z-value
The lower bound of the confidence interval
The upper bound of the confidence interval
ConfZ1prop(x,n,C)
Example:
ConfZ1prop(21, 50, 0.95) returns {-1.9599…,
0.2831…, 0.5568…}
x
x
1
x
2
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