HP Prime Graphing NW280AAABA manual Two-Sample Z-Test

Models: Prime Graphing NW280AAABA

1 616
Download 616 pages 24.49 Kb
Page 251
Image 251

Results

The results are:

 

 

 

 

 

Result

Description

 

Test Z

Z-test statistic

 

Test x

Value of x associated with the

 

 

test Z-value

 

P

Probability associated with the

 

 

Z-Test statistic

 

Critical Z

Boundary value(s) of Z

 

 

associated with the α level that

 

 

you supplied

 

Critical x

Boundary value(s) of x required

 

 

by the α value that you supplied

Two-Sample Z-Test

Menu name

Z-Test: μ1 μ2

 

 

 

On the basis of two samples, each from a separate

 

population, this test measures the strength of the evidence

 

for a selected hypothesis against the null hypothesis. The

 

null hypothesis is that the means of the two populations

 

are equal, Η0: μ1 = μ2.

 

You select one of the following alternative hypotheses to

 

test against the null hypothesis:

 

 

H0: μ1 < μ2

 

 

H0: μ1 > μ2

 

 

H0: μ1 μ2

Inputs

The inputs are:

 

 

 

 

 

 

Field name

Definition

 

 

x1

Sample 1 mean

 

x2

Sample 2 mean

 

n1

Sample 1 size

 

n2

Sample 2 size

 

σ1

Population 1 standard deviation

 

σ2

Population 2 standard deviation

 

α

Significance level

 

 

 

 

Inference app

247

Page 251
Image 251
HP Prime Graphing NW280AAABA manual Two-Sample Z-Test