Field name

Definition (Continued)

 

 

 

 

σ2

Population 2 standard

 

 

deviation.

 

α

Significance level.

Results

 

 

The results are:

 

 

 

 

 

Result

Description

 

 

 

 

Test Z

Z-Test statistic.

 

Prob

Probability associated with the

 

 

Z-Test statistic.

 

Critical Z

Boundary value of Z

 

 

associated with the α level that

 

 

you supplied.

 

 

 

One-Proportion Z-Test

Menu name

Z-Test:

 

On the basis of statistics from a single sample, this test

 

measures the strength of the evidence for a selected

 

hypothesis against the null hypothesis. The null hypothesis

 

is that the proportion of successes in the two populations

 

is equal: H0 : π = π0

 

You select one of the following alternative hypotheses

 

against which to test the null hypothesis:

 

H1:π < π0

 

H1:π > π0

 

H1:π ≠ π0

11-10

Inference aplet