STA 10 Basic Statistics and Quantitative Literacy

Time and Location: Class Time: MW 8:30am-9:45am; Room: 116 Old Chem; Syllabus

Instructor: Elizabeth Mannshardt-Shamseldin

Office Hour: W 9:45am - 10:45am and by appointment

Office: 216 Old Chem

Contact Information: (919) 681-8443* - elizabeth "@" stat.duke.edu - Instructor Webpage

*I am off-campus quite a bit so the best way to get ahold of me is via email.


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Announcements

05/06: Practice problems from Ch16: Word Doc;

05/06: Practice problems for the Final: (Updated 5/6): Word Doc;

5/5: The last HW and journal are available to be picked-up in my office. HW, Journal, and GW Scores are now on-line.

5/5: The SECC will have hours Wed and Thurs evening. Please take advantage of this opportunity for tutoring and general assistance. The tutor for Sta10 has hours tonight (Wed) from 4:30-6., though you are welcome to stop by to see any tutor in the SECC.

05/03: Practice problems for the Final: (Updated 5/6 - see above):

5/3: The final exam will cover Chs 13-14.2, 15-16, 18, and concepts from 19-21 covered in class. Chs 22-23 will not be on the exam.

4/28: I will not have official office hours during finals week, but will be in my office Wed afternoon and most of the day Thurs. You are welcome to stop by with questions, or feel free to email to set up a specific appointment.

4/28: HW and Journal will be available for pick-up in my office Wed and Thurs, 5/5 and 5/6.

04/19: Examples from Today's lecture: Word Doc;

04/12: Quiz on Chs 13 - 16, Wed Apr 21st. Formula sheets will be provided. BRING A CALCULATOR!

04/12: Iffice hour for Wed, Apr 21st moved to Mon, Apr 19th, 9:45am.

03/24: Additional Least Squares Regression problems using SSX, SSY, SXY: Word Doc; Open Office Doc 03/24: Office hour for week of 3/29 will be moved from Wed to Mon, 3/29 9:45-10:45.

03/24: Midterm Two on Wed 3/31 will cover Chs 7-13.2. Formula sheets will be provided. BRING A CALCULATOR!

03/15: Journal 2 - now due Wed Mar 24.

03/15: Quiz on Chs 7 - 10 now on Mon Mar 22. BRING A CALCULATOR!

03/03: Problems from Ch 10 today will be due on the next HW assignment, due 3/22, not the current HW due 3/15. If you would like to get started, the problems from today's lecture are: Ch 10 - 1, 5

03/01: Quiz on Chs 7 - 10 Wed, Mar 17.

03/01: Journal #2 due on Mon, Mar 22. Bring printed copy to class to turn in - no email copies will be accepted.

02/01: Journal #1 due on Wed. Bring printed copy to class to turn in - no email copies will be accepted.

01/27: There will be a closed-book quiz next Wed, Feb 3 on Chapters 1-3.

01/12: First Day of Class: Wednesday, Jan 13th



Scores

05/07: Course Grades

*This does include excused absences, which are NOT included on the on-line HW Scores sheet. 05/07: Updated 5/7 HW Scores

04/07: Midterm 2 Scores

03/24: Quiz 2 Scores

03/01: Midterm 1 Scores - includes Extra Credit

02/10: Quiz 1 Scores


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Homework

(Must be stapled with name and all material legible to receive credit. Do not turn in to mailbox.)
(All work must be shown to receive credit.)
Dates Assigned Reading Lecture Homework Due Problems Complete Set*
04/19
04/26 		Ch19-23 by 04/26 #13 Wed, Apr 28 Ch19: 4ab, 5, 6
Ch 20: 4, 5, 11, 12
Ch 21: 3, 11, 16
*Note: Do not do Ch 19 4c. 		Yes
04/12
04/14 		Ch18 by 04/14 #12 Mon, Apr 19 Ch16: 9, 10, 15, 17, 18, 21, 23
Ch 18: 7, 10, 12, 15 		Yes
04/05
04/07 		Ch15 and 16 by 04/12 #11 Mon, Apr 12 Ch14: 2, 3, 18
Ch 15: 1, 2, 6, 8, 3, 15, 18
Ch16: 1, 3, 4 		Yes
03/29
Ch13 and 15 by 04/05 #10 Mon, Apr 5th Ch13: 11, 12, 15 Yes
03/22
03/24 		Ch12 and 13 by 03/24 #9 Mon, Mar 29nd Ch12: 3, 6, 9, 5, 16, 11, 14, 17
Ch13: 3, 4, 9, 10 		Yes
03/15
03/17 		Ch11 by 03/17 #8 Mon, Mar 22nd Ch10: 1, 2, 5, 7, 12, 13, 14, 15
Ch11: 1, 4, 15, 3, 7, 16 		Yes
03/01
03/03 		Ch9 and Ch 10 by 03/03 #7 Mon, Mar 15th Ch8: 3, 4, 8, 9, 16, 24, 25
Ch9: 4, 8, 10, 2, 5 		Yes
02/22
02/24 		Ch7 and Ch 8 by 02/24 #6 Mon, Mar 1st Ch7: 12, 13, 25, 4, 8, 19, 28
Ch8: 1, 6 		Yes
02/08
02/10 		Ch6 by 02/15 #5 Mon, Feb 15th Ch5: 2, 7, 17, Case Study 5.1 pg 89 - would a matched pairs, blocked design, or neither be a good method for this study? Briefly explain.
Ch5: 15, 22, 23 		Yes
02/01
02/03 		Ch5 by 02/08 #4 Mon, Feb 8th Ch4: 16, 17, 25, 27
Ch4: 1, 5, 18, 20 		Yes
01/25
01/27 		Ch4 by 02/01 #3 Mon, Feb 1st Ch3: 4, 16, 18
Ch3: 6, 8, 12, 13, 25 		Yes
01/20 Ch3 by 01/25 #2 Mon, Jan 25th Ch2: 8, 10, 12, 13 Yes
01/13 Ch1, Ch 2 by 01/20 #1 Wed, Jan 20th Ch1: 6, 7, 11, 13, 17 Yes
*Homework will be assigned per class period after covering relevant material in the lecture, accumulating over 1-3 lectures.
When all problem have been posted for an assignment, it will be considered a complete set and no additional problems will be assigned for that HW.
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Journal Entries

(Must be typewritten and all materials stapled to receive credit)
Entry Date Assigned Article Date Due
III 04/12 Time Series Analysis
From the website, you will be looking at two sets of data:
From Chapter 1 (on the site) : US Treasury Bill Contracts (monthly) and from Ch 2: Accidental Deaths in the US

For each data set:
*Create a timeplot (using 1-n months, etc, is fine for the time scale.)
*Describe the series by considering the four components.
*On your timeplot, find the equation for the regression line (using Excel is recommended - Click on Chart - Add Trendline to plot under "Chart" menu).
*Using the equation for the regression line, detrend the series.
*Plot the new, detrended series. Describe the series by considering the four components.
*Give a brief "common sense" definition of any trends that you do or do not see.

Wed, 04/28
II-B 03/17
On your scatter-plot of the total number of medals a country earned at the 2010 Olympic Games (response) versus the Gross Domestic Product (GDP) of the corresponding country (explanatory) include a Regression Line. This can be done in Excel using the "Add Trend Line" option on the plot (make sure to select "show equation".) This can be done by hand but is calculation intensive so software such as Excel is recommended.
What is the predicted total medal count for the US?
What is the correlation value r for the relationship? (Note that in Excel, r is the square root of R^2 shown on plot.)
Is GDP a good predictor of total number of medals? What other factors might be affecting the results?

Spreadsheet with Calcs

03/24
II-A 03/01 Olympic Medal Count
Countries By Population
Countries By GDP

Create a scatter-plot of the number of medals a country earned at the 2010 Olympic Games (response) versus the population of the corresponding country (explanatory) for the Top 10 countries by total medal count.
Create a scatter-plot of the number of medals a country earned at the 2010 Olympic Games (response) versus the Gross Domestic Product (GDP) of the corresponding country (explanatory) for the Top 10 countries by total medal count. (Use the information according to the International Monetary Fund.)
Consider whether counts, proportions, population (GDP) per medal, etc is the best way to represent the information.
Comment on what is suggested by the graphs. 		03/24
I-B 01/25 Palin Poll
Give examples of both an open and a closed unbiased question that might have been asked in this poll.
Give an example of both a question that has deliberate bias and a question with unintentional bias that might have been asked in this poll.
Comment on what events that have recently been in the media may have influenced this poll.
What might be behind the statement "just under a half of conservatives view Palin favorably"? Hint: Consider Example 7 pg 46 and contrast with the statment "43 percent hold a positive view". 		02/01
I-A 01/20 50% Divorce Rate?
Critique the article's argument. Summarize a method in which the divorce rate could be calculated and explain what is being measured and reported for that rate.
Address how you would devise an observational study or randomized experiment as appropriate.
Comment on each of the Seven Components of a Statistical Study. 		02/01