topic Re: Perform Z test using SAS enterprise guide 5.1 in SAS Enterprise Guide

Perform Z test using SAS enterprise guide 5.1

Odienliow — Sun, 10 Apr 2016 07:31:02 GMT

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?

Re: Perform Z test using SAS enterprise guide 5.1

Ksharp — Mon, 11 Apr 2016 01:50:57 GMT

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	2.212388	Pr > \|t\|	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 .