STAT 301 Lab

Lab 1: Introduction

T.A.: Yixuan Qiu

About Me

• Yixuan [iʃʊən] Qiu [tʃəʊ]
• 2nd year PhD student
• Email: yixuanq@purdue.edu
• Office Hour: HAAS 115, Mon 3:30~4:30 PM

About Me

• Yixuan [iʃʊən] Qiu [tʃəʊ]
• 2nd year PhD (Probably hard to Describe) student
• Email: yixuanq@purdue.edu
• Office Hour: HAAS 115, Mon 3:30~4:30 PM

Why You Are Here

• Apply what you learned in class to real data analysis
• Acquire statistical software skills
• Finish weekly lab assignment (that will affect your final score)

Why You Are Here

• In each lab you are going to finish an assignmnet in 50 min. Today is Lab 1.
• Mainly about using the statistical software SPSS.
• Each lab is worth 20 points. The lowest score will be dropped.

Always Do These...

When you come to the classroom,

• Pick up a handout (if any)
• Ask me for your last lab paper (with your grade)
• Open Blackboard (http://mycourses.purdue.edu/) and download the lab instructions
• Open SPSS, the statistical software
• Check out my slides at http://statr.me/courses.html

Some Unhappy Truth

• NO make-up labs
• You NEED to get prepared - you don't have time to re-study everything
• Finish and turn in your lab before the end of the session. NO late hand-in allowed
• Focus on your work during the lab. NO texting/email/Facebook. Time is money, and your score.

You Are Encouraged to Do...

• Start early as soon as you come in.
• Discuss with the person next to you. But no share of work.
• Read your class notes and related materials.
• Ask me for help. Always.

A Quick Review of SPSS

• SPSS is a software to do statistical analysis
• The first step is to enter data into SPSS
• Two tabs at the bottom
  • Variable View to give names to variables
  • Data View to input values of variables

Types of Variables

• Numeric
  • Used to store numbers, e.g. 1, 2, -3, 4.5, ...
  • Notice the width and decimals
  • Cannot input characters
• String
  • Used to store characters, e.g., apple, orange, banana, ...
  • Notice the width