'Equal variance assumption' diaporamas de présentation

Inference for Regression

Inference for Regression. In Lesson 6, we modeled relationships by fitting a straight line to a sample of ordered pairs. The Nambe Mills regression line is Now we want to know, how useful is this model?. 16.1 The Population and the Sample.

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Comparison of two samples

Comparison of two samples. Summer program Brian Healy. Previous classes. Hypothesis testing Null and Alternative hypotheses Test statistic p-value Conclusion Confidence intervals Comparison of CI to hypothesis test Power and sample size. What are we doing today?. Two-sample t-test

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Introduction to Probability and Statistics

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Sociology 601: Midterm review, October 15, 2009

Sociology 601: Midterm review, October 15, 2009. Basic information for the midterm Date: Tuesday October 20, 2009 Start time: 2 pm. Place: usual classroom, Art/Sociology 3221 Bring a sheet of notes, a calculator, two pens or pencils Notify me if you anticipate any timing problems

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STA291

STA291. Statistical Methods Lecture 27. Inference for Regression. Does the cost of a movie depend on its length? Now we want to know, how useful is this model?. The Population and the Sample. The movie budget sample is based on 120 observations .

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Manny and Andrew

Manny and Andrew. What is Starcraft II. RTS (real time strategy game) Made by Blizzard entertainment Came out in 2010 Sequel to original Starcraft (1998) Over 5 million copies sold. Competitive Starcraft. Starcraft is a huge competitive game

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Inference for Regression

Inference for Regression. Population Regression Line. Standard Error of the Regression Line. The ? above is the standard deviation of the regression line. It is estimated by the standard error of the regression line S e = standard deviation of the residuals .

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10.12 Page 344

10.12 Page 344. Two Sample t-test regarding (2) population means. 10.12 Page 344. ANOVA Method. 10.12 Page 344. ANOVA Method. Think of the F distribution as the t distribution squared. All F-tests are one-tail tests. For a 2-tailed t-test, the area in the two-tails are combined.

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