Fall Semester 2004

Business 90: Business Statistics

Section 10 code 50034 Lectures Tuesday 2:00-4:45PM BBC 021

11/16 Schedule of Classes, Reading, HW dates and Tests

8/31 Introduction: Data & Sampling pp. 1-21. Tables & Charts: Numerical Data pp. 50-62

Review of Excel see pp. 28-44

9/7 Categorical Data pp. 68-72 Graphical excellence pp. 80-84

Two-way tables and Simpson’s Paradox pp. 75-77 & Notes HW1

9/14 Numerical Summaries: Location & Spread, Empirical Rule, Z scores, CV, RRR pp.104-124

Q1 Percentiles; Box-plots: pp. 131-134 & Notes HW2

9/21 Bivariate data –Correlation & XY plots pp. 65, 137-142;

Q2 Probability/ Basic Concepts pp. 158-165; HW3

9/28 Conditional Probability & Bayes Rule notes; pp. 168-178

Q3 Random Variables 182-184;

The Covariance and Risk Reduction -Portfolios, diversification pp. 188-195& Note HW4

10/5 HW5 Review Binomial probability model pp. 197-203

10/12 Exam I

Decision Analysis: Payoff, EMV, EOL, EVPI, CV, RRR, sample information pp.722-740

10/19 The Normal Distribution pp. 224-237 C.L.T; Sampling distribution of m and P pp. 253-267.

Finite pop. Correction PP 284-5 HW 6 Q4

10/26 Review of Sampling distribution.

Confidence Interval Est. of m and P, pp. 282-298 HW7 Q5

11/2 Sample size for CI pp. 284-306

Application of CI to accounting pp.307-310

Q6 Hypothesis Testing of m pp. 332-339; HW8

11/9 Exam II Hypothesis p-value and one tail tests pp. 339-347 HW9

11/16 t-test for m pp. 348-353

Introduction to Regression Analysis: estimation & ANOVA pp. 512-526 HW10

11/23 Regression (cont.) Assumptions and Inference pp. 527, 527-543 HW 11 Q7

11/30 Validating regression assumptions via Residual Analysis. pp.528-532 HW 12

Exam III

12/7 Forecasting and review for Final Exam pp. 546-550

FINAL EXAM Friday 12/17 12:15-14:30

11/16 Homework Schedule

Hand in your HW at the beginning of class on due dates.

All bold exercises should be done using Excel.

HW 1 due 9/7: 1.3, 1.7, 1.13, 1.19, 1.21, 2.13, 2.15(skip a)

HW2 due 9/14: 2.27, 2.31, 2.34, 2.36, 2.40, 2.41, 2.42, 2.31, 2.48,

Simpson Paradox – Describe a situation where Simpson paradox may occur and argue what should be the correct analysis.

HW3 due 9/21: 2.62, 3.3, 3.9, 3.14 (use the empirical rule in part d) , 3.15(what is the Z

score of 9min.), 3.34, 3.35, 3.38, 3.72,3.73

HW4 due 9/28 2.22, 2.23, 3.44, 3.45, 4.1,4.3, 4.6, 4.7, 4.9, 4.11 .

HW5 due 10/5: 4.19, 4.21, 4.30, 4.31, 4.33, 4.35, 4.51, 5.1, 5.9, 5.11(Excel for g.- k.)

HW6 due 10/19: 5.19, 5.21, 5.53 (Calculate the Z score Z{X=30} for part a) 16.3, 16.5, 16.15(a-i), 16.17(a-i)

HW7 due 10/26: 6.2, 6.4, 6.5, 6.6, 6.9, 6.11,6.13.

HW8 due 11/2: 6.39, 6.45, 6.47, 6.49, 6.53, 7.1, 7.3, 7.5, 7.7, 7.9, 7.10, 7.15

HW9 due 11/9: 7.32, 7.33, 7.39, 7.45.

HW10 due 11/16 8.13, 8.14, 8.15, 8.17, 8.19, 8.22, 8.33, 8.27, 8.31, 8.43, 8.45

Do Not turn in but be sure you understand and can answer: 8.1-8.10

HW11 due 11/23: 8.51, 8.53. 12.2, 12.3, 12.5, 12.6.12.7, 12.14, 12.16, 12.18

HW12 due 11/30 12.35, 12.37, 12.38, 12.39, 12.41, 12.42