Stat 401 - Fall 2012 - Links to lecture and lab videos

The 2012 lecture and lab videos are copied into various formats. Those files are available here.

Links to each lecture or lab are in the following calendar. They are labelled by their contents. On campus students are welcome to use these if you miss a class or want to see something again.

We anticipate posting videos within 24 hours of the end of lecture or lab.

Week Monday Weds Weds lab Friday
1 Aug 20
Intro/Types of studies

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Aug 22
Types of studies

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Aug 22
Intro to SAS

The primary and secondary recordings (what I usually post here) seem to have failed. Lab recording is available in Blackboard. Lecture/Lab Videos and Annotated Notes / Lecture/Lab Videos / Primary Video Recordings. 3rd one is the lab.

Aug 24
Numerical and Graphical summaries of data

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2 Aug 29
Randomization tests

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Aug 31
Standard errors

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Aug 31
Question/Answer, use of SAS for randomization tests and t-tests

Streaming Video As of 8pm Weds, there was no Echo video (what I normally post). This is a Panopto video. To view this, you will need to login. Your Blackboard login is the same as your ISU Netid and password. If an Echo recording becomes available, I will post those.

Sept 2
Pooling variances, degrees of freedom, T statistics

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3 Sep 3
Labor Day, no class
Sep 5
Confidence intervals

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Sep 5
Q/A, Paired t tests, Paired t and Transformations in SAS

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Sept 7
Nonparametric tests: Wilcoxon rank sum and signed rank

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4 Sept 10
Assumptions, Consequences, Independence

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Sept 12
Conclusions about individuals from change in mean, Transformations, Interpretation after log transformation

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Sept 12
Q/A, SAS to compute residuals and to average subsamples
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Sept 14
Choosing an analysis.

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5 Sep 17
Pooling variances, predicted values, model comparison

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Sep 19
Model comparison using Sums of squares. ANOVA table.

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Sept 19
Q/A on HW 4. SAS for transforming after averaging. SAS for basic ANOVA

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Sept 21
Intermediate models

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6 Sept 26
Assumptions of ANOVA, residual plots

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Sep 26
Linear contrasts

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Sep 26
Q/A on HW 5, SAS for fitting intermediate models and more 'after the ANOVA' analyses

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Sept 28
Precision of contrasts, Linear trend contrast, Multiple testing issues

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7 Oct 1
Multiple Comparisons

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Oct 3
False Discovery Rate

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Oct 3
Q/A on the midterm, SAS for linear regression

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Oct 5
Philosophy of multiple comparisons, Intro to linear regression

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8 Oct 8
Estimation and inference on intercepts and slopes

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Oct 10
Predictions, Calibration

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Oct 10
Q/A on regression, SAS to compute se's and intervals for predictions

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Oct 12
Correlation, R2

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9 Oct 15
Relationship between linear trend contrast and linear regression; Assumptions of linear regression

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Oct 17
ANOVA lack of fit test, interpretation of slopes after log transformations

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Oct 17
SAS for ci's on parameters, calculating quantiles, and the lack of fit test

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Oct 19
Multiple Regression; interpretation of coefficients

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10 Oct 22
Inference in Multiple Regression, Type I and III SS

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Oct 24
Constructing variables: polynomials and indicator variables

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Oct 24
Help on HW 8. Constructing variables; regression diagnostics

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Oct 26
Constructing variables to evaluate multiple intercepts and differences in slopes

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11 Oct 29
Constructing variables to model interactions

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Oct 31
Influential X values: Leverage and Cook's Distance

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Oct 31
Help on HW 9, SAS for plotting means and se's and for model selection

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Nov 2
Model selection (introduction)

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12 Nov 5
Model selection: AIC, BIC

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Nov 7
Evaluating prediction accuracy, cross-validation

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Nov 7
Q/A on midterm, Model selection exercise, SAS for 2 way ANOVA

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Nov 9
2 way ANOVA: concepts, interaction

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13 Nov 12
2 way ANOVA: Simple effects, interactions, precision

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Nov 14
Error variance, Good/Bad/Ugly and Randomized Complete Block Designs

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Nov 14
Q/A on HW 10, SAS for RCBD (discussed) and Proportions (not discussed), Good/Bad/Ugly exercise.

Nov 16
Final points on blocking, Proportions (intro)

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14 Nov 26
Proportions: properties, test of single proportion
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Nov 28
Odds ratios

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Nov 28
Q/A on HW 11, Miscellaneous SAS tips: analyzing many variables, lists of variables, merging two data sets, many-to-one matching, reading tab-delimited files, and manipulating dates and times

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Nov 30
Inference on odds ratios, Chi-square tests

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15 Dec 3
Chi-square tests, Logistic regression

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Dec 5
SAS for logistic regression, drop-in-deviance tests, model selection in logistic regression

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Dec 5
Logistic regression for Binomial data, overdispersion, SAS for overdispersion and Poisson regression

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Dec 7
Poisson regression, overview of course, second courses in statistics

Because of technical problems with the tablet, I had to use the Elmo today. Echo does not capture that. The only recording is the Panopto recording, and you see my hand a lot. Use your ISU netid to login to Blackboard. The iastate.edu login does not work (at least for me).

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