HP 39g+ Graphing Calculator Guía de usuario Pagina 130

  • Descarga
  • Añadir a mis manuales
  • Imprimir
  • Pagina
    / 294
  • Tabla de contenidos
  • MARCADORES
  • Valorado. / 5. Basado en revisión del cliente
Vista de pagina 129
9-14 Inference aplet
Two-Sample T-Test
Menu name T-Test: µ1 – µ2
The Two-sample T-Test is used when the population
standard deviation is not known. On the basis of statistics
from two samples, each sample from a different
population, this test measures the strength of the evidence
for a selected hypothesis against the null hypothesis. The
null hypothesis is that the two populations means are
equal H
0
: µ
1
= µ
2
.
You select one of the following alternative hypotheses
against which to test the null hypothesis
Inputs The inputs are:
H
1
:µ
1
µ
2
<
H
1
:µ
1
µ
2
>
H
1
:µ
1
µ
2
Field
name
Definition
Sample 1 mean.
Sample 2 mean.
S1 Sample 1 standard deviation.
S2 Sample 2 standard deviation.
n1 Sample 1 size.
n2 Sample 2 size.
α Significance level.
_Pooled? Check this option to pool samples
based on their standard deviations.
x1
x2
Vista de pagina 129
1 2 ... 125 126 127 128 129 130 131 132 133 134 135 ... 293 294

Comentarios a estos manuales

Sin comentarios