Statistical Methods I
Revised: January 6, 2020
Course Description
Descriptive statistics, correlation, least square regression, basic probability models,
probability distributions, central limit theorem, confidence intervals, hypothesis
testing.
Prerequisite: MATH 146 or 153 or placement.
Three semester hours.
Student Learning Objectives
- Describe the concepts of population and sample, and some of the basic descriptive
measures associated with them.
- Explain graphical methods for data presentation.
- Connect the concepts of probability, random variables, and distributions.
- Assess the properties of common distributions, especially the normal and binomial.
- Synthesize the ideas of correlation and regression.
- Interpret estimation and hypothesis testing procedures applied to population means
and proportions.
- Compare multiple means and proportions using appropriate statistical analyses.
- Model univariate and multivariate data using linear models.
Text
Roxy Peck, Chris Olsen, and Jay DeVore. Introduction to Statistics and Data Analysis, Fourth Edition. (Brooks-Cole/Cengage Learning), 2011.
Grading Procedure
Grading procedures and factors influencing course grade are left to the discretion
of individual instructors, subject to general university policy.
Attendance Policy
Attendance policy is left to the discretion of individual instructors, subject to
general university policy.
Course Outline
Chapters 1-5 can be covered as necessary.
- Chapter 1: The Role Of Statistics.
- Chapter 2: The Data Analysis Process And Collecting Data Sensibly.
- Chapter 3: Graphical Methods For Describing Data.
- Chapter 4: Numerical Methods For Describing Data.
- Chapter 5: Summarizing Bivariate Data.
- Chapter 6: Probability. (1.5 weeks)
Chance Experiments and Events. Definition of Probability. Basic Properties of Probability.
Conditional Probability. Independence.
Note: Sections 6.6 and 6.7 are optional.
- Chapter 7: Random Variables and Probability Distributions. (1 week)
Random Variables. Probability Distributions for Discrete Random Variables. Probability
Distributions for Continuous Random Variables. Mean and Standard Deviation of a Random
Variable. The Binomial Distribution. Normal Distributions.
Note: The topic of Geometric Distributions in Section 7.5, and Sections 7.7. 7.8 are
optional.
- Chapter 8: Sampling Variability And Sampling Distributions. (1 week)
Statistics and Sampling Variability. The Sampling Distribution of a Sample Mean. The
Sampling Distribution of a Sample Proportion. Note: Consider having Exam 2 after Chapter
8.
- Chapter 9: Estimation Using A Single Sample. (1 week)
Point Estimation. A Large Sample Confidence Interval for a Population Proportion.
A Confidence Interval for a Population Mean. Communicating and Interpreting the Results
of Statistical Analyses.
- Chapter 10: Hypothesis Testing Using A Single Sample. (2 weeks)
Hypotheses and Test Procedures. Errors in Hypothesis Testing. Large-Sample Hypothesis
Tests for a Population Proportion. Hypothesis Tests for a Population Mean. Note: Section
10.5 is optional.
- Chapter 11: Comparing Two Populations or Treatments. (1 week)
Inferences Concerning the Difference Between Two Populations or Treatment Means Using
Independent Samples. Inferences Concerning the Difference Between Two Population or
Treatment Means Using Paired Samples. Large-Sample Inferences Concerning the Difference
Between Two Populations or Treatment Proportions. Interpreting the Results of Statistical
Analyses.
- Chapter 12 The Analysis Of Categorical Data And Goodness-Of-Fit Tests. (1 week)
Chi-square Tests for Univariate Data. Tests for Homogeneity and Independence in a
Two-way Table. Interpreting the Results of Statistical Analyses.
- Chapter 13: Simple Linear Regression and Correlation: Inferential Methods. (1 week)
Simple Linear Regression Model. Inferences About the Slope of the Population Regression
Line. Checking Model Adequacy. Inferences Based on the Estimated Regression Line (Optional).
Inferences About the Population Correlation Coefficient (Optional). Interpreting the
Results of Statistical Analyses.
- Chapter 14: Multiple Regression Analysis. (1 week)
Multiple Regression Models. Fitting a Model and Assessing Its Utility. Inferences
Based on an Estimated Model. Other Issues in Multiple Regression. Interpreting and
Communicating the Results of Statistical Analyses.
- Chapter 15: Analysis of Variance. (0.5 week)
Single-Factor ANOVA and the $F$ Test. Multiple Comparisons. The $F$ Test for a Randomized
Block Experiment. Two-Factor ANOVA. Interpreting the Results of Statistical Analyses.
* Note: Most instructors for this course require the use of statistical calculators.