Calcite | Level 5

## Perform Z test using SAS enterprise guide 5.1

52.3 53.5 50.5 50.3 49.6 51.0 48.3 50.6 50.2 52.5 47.5 50.9 49.8 50.0 53.0 50.9 49.9 50.1 50.7 48.2 51.5 49.0 51.7 53.2 51.1 52.6 51.2 49.5 51.9 52.0 48.8 46.8 51.3 49.3 54.0 49.2 51.4 48.5 50.8 49.4

This is my 50 data set. I was asked to perform a hypothesis testing on whether the mean of the following data is more than 50 or not. Due to large sample size, i should perfom a Z test. However, my lecturer only taught us how to perform a t test. By doing the step distribution analysis, and the value given is also t value.

May i know how to perform z test for the hypothesis testing using SAS enterprise?

Super User

## Re: Perform Z test using SAS enterprise guide 5.1

``````data have;
input x @@;
cards;
52.3 53.5 50.5 50.3 49.6 51.0 48.3 50.6 50.2 52.5 47.5
50.9 49.8 50.0 53.0 50.9 49.9 50.1 50.7 48.2 51.5 49.0
51.7 53.2 51.1 52.6 51.2 49.5 51.9 52.0 48.8 46.8 51.3
49.3 54.0 49.2 51.4 48.5 50.8 49.4
;
run;
proc univariate data=have mu0=50 all;
var x;
run;``````

 Student t t 2.21239 0.0329

It is significant . is NOT equal 50 at alpha=0.05 .

Basic Confidence Limits Assuming Normality
Parameter Estimate 95% Confidence Limits
Mean 50.57500 50.04930 51.10070
Std Deviation 1.64375 1.34650 2.11064
Variance 2.70192 1.81306 4.45479

Mean is great than 50 at alpha=0.05 .

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