HP Prime Graphing Wireless Calculator Manual de usuario Pagina 327

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Results
The results are as follows:
Results Description
Test T T-Test statistic
Test Δ Dierence in the means associated with the test t-value
P Probability associated with the T-Test statistic
DF Degrees of freedom
Critical T Boundary values of T associated with the α level that you supplied
Critical Δ Dierence in the means associated with the α level you supplied
Condence intervals
The condence interval calculations that the HP Prime can perform are based on the Normal Z-distribution or
Student’s t-distribution.
One-Sample Z-Interval
Menu name
Z-Int: 1 μ
This option uses the Normal Z-distribution to calculate a condence interval for μ, the true mean of a
population, when the true population standard deviation, σ, is known.
Inputs
The inputs are as follows:
Field name Description
Sample mean
n Sample size
σ Population standard deviation
C Condence level
Results
The results are as follows:
Result
Description
C Condence level
Critical Z Critical values for Z
Condence intervals 279
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