Session 17University of Southern California

ISE500 October 21, 2014

Geza P. Bottlik Page 1

Outline

• Questions, Comments?

• Quiz

• Go Over Quiz

• New Homework

• Devore Chapter 12, 13 - Regression

• Thursday – ANOVA with Kai

Session 17University of Southern California

ISE500 October 21, 2014

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Independent, predictor, explanatory

Bivariate

Scatter plot

Insert trend line

Excel Analysis tool

Session 17University of Southern California

ISE500 October 21, 2014

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Model equation:

Session 17University of Southern California

ISE500 October 21, 2014

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Session 17University of Southern California

ISE500 October 21, 2014

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Session 17University of Southern California

ISE500 October 21, 2014

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Session 17University of Southern California

ISE500 October 21, 2014

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Session 17University of Southern California

ISE500 October 21, 2014

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Session 17University of Southern California

ISE500 October 21, 2014

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Session 17University of Southern California

ISE500 October 21, 2014

Geza P. Bottlik Page 10

Session 17University of Southern California

ISE500 October 21, 2014

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Session 17University of Southern California

ISE500 October 21, 2014

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Session 17University of Southern California

ISE500 October 21, 2014

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Session 17University of Southern California

ISE500 October 21, 2014

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Session 17University of Southern California

ISE500 October 21, 2014

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Comparisons

Why are comparisons important?

What kind of things would we want to compare?

Session 17University of Southern California

ISE500 October 21, 2014

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Examples of comparisons Previous Semester

Session 17University of Southern California

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Session 17University of Southern California

ISE500 October 21, 2014

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Normal, known standard deviation

Session 17University of Southern California

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What if you don’t know the standard deviations?

Session 17University of Southern California

ISE500 October 21, 2014

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What if you don’t know the standard deviations?(if samples are sufficiently large)

Session 17University of Southern California

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But what if the samples are smaller?

Session 17University of Southern California

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But what if the samples are smaller?

Session 17University of Southern California

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Session 17University of Southern California

ISE500 October 21, 2014

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If the variances are not equal

Session 17University of Southern California

ISE500 October 21, 2014

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Paired or unpaired?

Session 17University of Southern California

ISE500 October 21, 2014

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Proportions, m and n large