📺 Welcome to "Confidence Intervals in SAS: SAS Programming for Beginners"!
🔍 In this tutorial, we dive into the world of confidence intervals using SAS, perfect for those just starting their SAS programming journey. Whether you're a student, analyst, or anyone interested in statistics, this video is tailored for you!
📌 Topics Covered:
Defining Confidence Intervals:
Understand the concept of confidence intervals and how they provide a range of values that likely contain the true parameter.
Difference Between Confidence Interval and Confidence Level:
Clarify the distinction between confidence intervals and confidence levels. Learn why both are crucial in statistical analysis.
Defining Alpha:
Explore the significance of alpha in hypothesis testing and confidence intervals. Grasp its role in determining the level of confidence.
Using PROC TTEST:
Walkthrough on utilizing SAS PROC TTEST to calculate confidence intervals. Gain practical insights into implementing this procedure for your statistical analysis.
🖥️ Who Should Watch:
SAS beginners looking to enhance their statistical analysis skills.
Students and professionals interested in understanding confidence intervals and their practical application.
Individuals wanting hands-on experience using PROC TTEST in SAS.
🔧 Prerequisites:
Basic understanding of SAS programming.
Familiarity with statistical concepts is helpful but not mandatory.
📊 Resources:
Downloadable SAS code snippets and datasets used in the tutorial are provided in the video description for hands-on practice.
🔗 Helpful Links:
My TTEST VIDEO: [ Ссылка ]
PROC TTEST Documentation: [ Ссылка ]
🤝 Join our community of learners! Share your thoughts, ask questions, and connect with fellow SAS enthusiasts in the comments section. Don't forget to hit the like button and subscribe for more SAS programming tutorials!
Code:
/*Create data to filter for Asia and US cars*/
data asia_usa;
set sashelp.cars;
if Origin in ("Asia", "USA");
run;
/*Sorting it to use in a ttest*/
proc sort data=asia_usa;
by Origin;
run;
/*Comparing mean MSRP between Asia and US*/
proc ttest data=asia_usa alpha=0.05;
class Origin;
var MSRP;
run;
Timestamps:
00:00 - Introduction
01:12 - Understanding Confidence Intervals
06:20 - Confidence Interval vs. Confidence Level
07:50 - Exploring Alpha vs. Confidence Level
10:00 - PROC TTEST in SAS
16:11 - Summary and Conclusion
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