welcome to stats 250 lab julie ghekas [email protected] september 8, 2014 section 008/010 monday...
TRANSCRIPT
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Welcome to STATS 250 Lab
Julie [email protected]
September 8, 2014
Section 008/010Monday 8:30-10:00/10:00-
11:30Mason Hall G444C
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Introductions Scavenger Hunt Syllabus Lab 1 iClicker Questions
Schedule
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About Your GSI
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Arrange yourselves in alphabetical order by first name without talking.
Challenge
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Name Year in School Major Birthday Biggest Accomplishment to date
It’s Your Turn
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Each group (2-4 people) works on the Scavenger Hunt You will not get credit if you do not work with a
group
10-15 minutes Introduce yourselves to each other and to class
websites and materials
Scavenger Hunt
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Read the syllabus. It has important information and can answer many questions.
Academic Integrity. Be fair to your classmates, your instructors, and yourself. Collaboration is encouraged on the homework, but answers should be composed independently.
Reasonable work for all homework problems must be shown for full credit.
Attendance for lab is mandatory. Talk to me reasonably in advance if you need to miss.
Homework Due: Thursdays at 8 am Pre-lab Due: Mondays at 8 am
Syllabus
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Held in SLC (Science Learning Center); 1720 Chem
Sunday 1-4 Monday 9-5 Tuesday and Wednesday 9-9 Thursday 9-2:30 Friday 10-2 Mine are Wednesdays 2:30-3:30, 5:30-7:30 Instructors also hold office hours
Office Hours
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Exams: 80% Homework and lab work: 20%
Homework: 12% Pre-labs: 2% Lab Tickets: 2% iClicker: 2% Participation: 2%
If you miss a lab, your final grade will be deducted by a full percentage point. You are allowed two make up labs.
Grade Breakdown
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Make sure that you are enrolled in my section on Lecturebook. Should have done during Scavenger Hunt
Check that iClickers are connected. Hold the power button until the lights start
blinking Press the “C” button twice
Lecturebook and iClickers
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Are you a dog or a cat person? A. All animals are scary B. Both C. Cat D. Dog E. Either—I’m indifferent
iClicker Practice
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Inception: Computer edition
Access SPSS from a non-school computer
http://virtualsites.umich.edu
Virtual Sites
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Measures of center: numerical values that tend to report the middle of a set of data
Mean: the sum of the observations divided by the number of observations, n
Median: if the numbers are arranged from smallest to largest, the number such that at least half of the observations are less than or equal to it and at least half of the observations are greater than or equal to it
Center
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Warm Up
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Open employee data.sav Work with a partner or two
You will not receive credit for today if you work on your own
Complete the Cool Down and Example Exam Question if you have extra time
In Lab Project (ILP)
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Lab 1
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Lab 1
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Lab 1
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Cool Down
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Example Exam Question
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Example Exam Question
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Which of these variables is categorical?
A. Height (in inches)B. Test score (out of 100 points)C. UM local zip code (e.g., 48109)D. Number of roommatesE. None of the above
iClicker
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Which of these variables is categorical?
A. Height (in inches)B. Test score (out of 100 points)C. UM local zip code (e.g., 48109)D. Number of roommatesE. None of the above
iClicker
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Which one of the following variables is not categorical?
A. Age of a personB. Gender of a person: male or femaleC. Choice on a test item: true or falseD. Marital status of a person: single, married,
divorced, other
iClicker
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Which one of the following variables is not categorical?
A. Age of a personB. Gender of a person: male or femaleC. Choice on a test item: true or falseD. Marital status of a person: single, married,
divorced, other
iClicker
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A good way to display the distribution of a categorical variable is with a…
A. HistogramB. Bar chartC. Box plotD. All of the above
iClicker
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A good way to display the distribution of a categorical variable is with a…
A. HistogramB. Bar chartC. Box plotD. All of the above
iClicker
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iClicker
Based on the histogram for weekly spending on entertainment by college students ($), the mean is expected to be larger than the median.
A. TrueB. False
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iClicker
Based on the histogram for weekly spending on entertainment by college students ($), the mean is expected to be larger than the median.
A. TrueB. False
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How do you feel about the material covered today?
A. Completely understand everythingB. Understand main ideas, shaky on detailsC. Good for the first half of lab, lost for the
secondD. Had trouble with some of main ideasE. Difficulty following most material
iClicker
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Practice Homework due Thurs, Sept 18 at 8 am
Pre-lab 1 due today at 8 am Pre-lab 2 due Monday at 8 am Turn in your yellow ticket
Take Away Points