Hp Prime Graphing Wireless Calculator Uživatelský manuál Strana 99

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Inference app 95
Menu keys The menu key options are as follows:
Confidence interval for a mean response
Menu name Interval: Mean response
This option calculates a confidence interval for the mean
response (ŷ), based on a list of explanatory data, a list of
response data, a value of the explanatory variable (X),
and a confidence level. After you enter your data in
Numeric view and tap , enter the confidence level
and the value of the explanatory variable (X) in the
prompt that appears.
Inputs The Numeric view inputs are as follows:
Results When is tapped, the results are as follows:
Menu
key
Definition
Selects a small, medium, or large font.
Returns to the Numeric view.
Field
name
Definition
Xlist The list of explanatory data
Ylist The list of response data
X The value of the explanatory variable for
which you want a mean response and a
confidence interval
C The confidence level (0 < C < 1)
Field
name
Definition
CThe input confidence level
Crit. T The critical value of t
DF The degrees of freedom
ŷ The mean response for the input X-value
serr ŷ The standard error of ŷ
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