ISDS 361A: Probability and Statistical Methods in Business and Economics - Spring 2009 - P, Assignments of Information Technology

Download ISDS 361A: Probability and Statistical Methods in Business and Economics - Spring 2009 - P and more Assignments Information Technology in PDF only on Docsity! Dr. T. Drezner ISDS 361A Spring 2009 Probability and Statistical Methods in Business and Economics – ISDS 361A Professor: Dr. T. Drezner Office: SGMH-4159 Office Hours: TR 2:15 – 3:45 p.m. Telephone: (714) 278-8318 Messages: (714) 278-2221 E-Mail: tdrezner@fullerton.edu Website: http://business.fullerton.edu/isds/ tdrezner PREREQUISITES The prerequisites for this class are ISDS 265 and a course in calculus (Math 135). These courses must be passed prior to taking ISDS 361A. If you have not successfully completed the prerequisites you are not qualified for this class. If you are not qualified, you must drop this class immediately, following the usual procedure. All classes are subject to administrative audit at any time during the semester. Any student found to be unqualified, will be administratively dropped. TEXT 1. Keller Gerald, Statistics for Management and Economics, 8th Edition, South-Western Cengage Learning, 2009. 2. Supplemental course-packet, available for purchase at COPYCO, 2438 E. Chapman Ave, Fullerton, Tel: (714) 680-9800. COURSE EVALUATION/REQUIREMENTS/EXPECTATIONS 1. There will be three (3) examinations and one (1) computer assignment: 2 Midterm Exams 30 points each 60 points A Final (cumulative) 30 points 30 points Computer assignment 10 points 10 points Total 100 points Your final grade will be based upon your total accumulated points in 3 exams and one assignment. A scale will be established to determine your final grade based upon total accumulated points (for three exams and an assignment) at the end of the semester in accordance with the guidelines established by the Department of ISDS for 300-level courses. The typical distribution is based on: 1 Dr. T. Drezner ISDS 361A Spring 2009 A = 90% or better (90-100) B = 80% or better (80-89) C = 70% or better (70-79) D = 60% or better (60-69) etc. Grades are based on a straight scale A, B, C, etc. – NO PLUS/MINUS grades will be assigned. 2. Grades are based on your performance in the course and are not subject to negotiations for personal problems, work conflicts, or other reasons. Examinations will cover material from the lectures, class discussions and homework exercises. Remember to bring a Scantron (882-E) to all tests. Examinations will start at the beginning of class on the scheduled day and will last one hour and fifteen minutes. Students who arrive late will not be given extra time. 3. No extra credit work will be offered to individual students. There are No make-up exams. If a student misses an exam, the score for the final will be assigned to the missed exam. No late assignments. Assignments are due on Thursday 4/23/2009, at the beginning of class. Assignments submitted late will be given 0%. 4. If you have questions regarding your examination (or assignment) grade, you must inquire about them within one (1) week of Scantrons/assignments being returned to the class. 5. Please review the University policy on academic dishonesty in the current catalog, page 484. Academic dishonesty, when detected, will result in an F for the course. 6. Required Tables : Page in Text: Page in Course-packet: 1) Binomial Distribution B-1 47 2) z-Table B-8 50 3) t-Table B-10 51 4)  2 B-11 52 Issue Coverage: i. Ethical issues. ii. Global issues. iii. Political, Social, Regulatory, Environmental issues. iv. Technological. v. Impact of Diversity. 2 Dr. T. Drezner ISDS 361A Spring 2009 Homework Exercises – Keller 8e Solutions: http://business.fullerton.edu/isds/tdrezner Chapter 4 – Measures of Location, Grouped Data, Dispersion: 4.1, 4.2, 4.4, 4.8a, 4.19, 4.20, 4.21; Chapter 6 – Probability: 6.52, 6.54 b-e, 6.56; Chapter 7 – Probability Distribution and Binomial Distribution: 7.10, 7.13, 7.18 a,b, 7.19a-c, 7.20, 7.22, 7.38, 7.90, 7.93, 7.94; Chapter 8 – Normal Distribution: 8.15, 8.21, 8.22, 8.23, 8.34, 8.35, 8.36, 8.38, 8.42, 8.43, 8.56; Chapter 10 – Confidence Intervals Estimation: 10.11, 10.43, 10.45; Chapter 11 – Confidence Intervals and Hypothesis Testing: 11.13, 11.14, 11.15; Chapter 12 – Confidence Intervals and Hypothesis Testing: 12.1, 12.18, 12.58, 12.66, 12.69, 12.70; Chapter 15 – Chi Squared (  2 ) Tests : 15.1, 15.5, 15.17, 15.22, 15.23. Simple Regression and Multiple Regression exercises will be assigned at a later date. 5 Dr. T. Drezner ISDS 361A Spring 2009 There is a free tutoring service available for ISDS 361A. The tutoring center is located in SGMH West Pavilion. Visit http://cbect.fullerton.edu/Appointment if you would like to sign-up for an appointment. I highly recommend that you use this free service. ISDS 361A -- Assignment Due date: Thursday, April 23rd, 2009 at the beginning of class. Data collection, Data entry, Data analysis, Interpretation Choose ten (10) packaged items that are found in grocery stores such as coffee, cereal, soap etc. of specific brands and sizes - no produce, only packaged products. Visit three grocery stores (no Target or WalMart) and record the price of each item (you don't need to buy the items). Using an Excel spreadsheet, prepare a table of four columns and eleven rows. In row 1 enter the stores' names in columns 2-4. Starting at the second row, enter the product name followed by the corresponding prices for the three stores. Example: Store A Store B Store C Product1 $1.00 $2.00 $3.00 Product2 $4.00 $4.00 $5.00 Product3 $7.10 $7.30 $7.50 Product4 $1.19 $0.99 $1.29 Product5 $10.87 $10.32 $9.99 Product6 $3.46 $3.49 $3.64 Product7 $1.29 $1.29 $1.29 Product8 $0.54 $0.57 $0.59 Product9 $2.98 $2.76 $2.40 Product10 $5.67 $6.01 $5.99 Your assignment is to prepare a report comparing prices among the three stores. To perform the statistical analysis: For Office 2003 - choose "Tools" from the top bar, and then "Data analysis", For Office 2007 – choose “Data” and then "Data analysis", (if you do not find “data analysis” choose "add-ins" and you will find it there). Choose "Descriptive statistics", and click "OK". For input range highlight the cells B1 to D11, or type in B1:D11. Tick the boxes labeled "Labels in first row", "Summary statistics", and "Confidence level for mean", and click "OK". A printout example is provided overleaf. Print both tables or "Cut" and "Paste" them into a Word file for your report. 6 Dr. T. Drezner ISDS 361A Spring 2009 1. Write a few paragraphs summarizing your findings about the three stores. Support your statements and conclusions with the analysis results. No concept definitions in the interpretation/discussion. 2. Calculate the 95% confidence interval for the mean price per store. In one sentence, explain the meaning of your confidence interval. Instructions are provided on my website. Make sure to include a cover page with your: (1) name, (2) campus assigned I.D. number (CWID), and (3) class time. Staple your assignment – no loose pages. No hand-written assignments. Excel Analysis Printout Store A Store B Store C Mean 3.81 Mean 3.873 Mean 4.069 Standard Error 1.036975302 Standard Error 0.992628441 Standard Error 0.960604497 Median 3.22 Median 3.125 Median 3.32 Mode #N/A Mode #N/A Mode 1.29 Standard Deviation 3.279203833 Standard Deviation 3.138966744 Standard Deviation 3.037698142 Sample Variance 10.75317778 Sample Variance 9.853112222 Sample Variance 9.22761 Kurtosis 1.093221625 Kurtosis 0.455504048 Kurtosis - 0.092306113 Skewness 1.190271643 Skewness 1.045122852 Skewness 0.816979306 Range 10.33 Range 9.75 Range 9.4 Minimum 0.54 Minimum 0.57 Minimum 0.59 Maximum 10.87 Maximum 10.32 Maximum 9.99 Sum 38.1 Sum 38.73 Sum 40.69 Count 10 Count 10 Count 10 Confidence Level(95.0%) 2.345802896 Confidence Level(95.0%) 2.24548325 Confidence Level(95.0%) 2.17304 Disabled Student Services Students with temporary or permanent disabilities may receive assistance and support services through the Disabled Student Service Office, UH-101, 714-278-3117, www.fullerton.edu/disabledservices. Assessment Statement: 7