'Standard dev' diaporamas de présentation

Chapter 10 Comparisons Involving Means

Chapter 10 Comparisons Involving Means. ? 1 = ? 2 ?. ANOVA. Estimation of the Difference between the Means of Two Populations: Independent Samples Hypothesis Tests about the Difference between the Means of Two Populations: Independent Samples

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Module 6: QC Basic Rules and Charts

Module 6: QC Basic Rules and Charts. Analysis, Charts and Interpretation of Rules. Learning Objectives. Upon completion of this module you will be able to:

1.02k views • 54 slides

Module 6: QC Basic Rules and Charts

Module 6: QC Basic Rules and Charts. Analysis, Charts and Interpretation of Rules. Learning Objectives. Upon completion of this module you will be able to:

559 views • 54 slides

Do you think you are normal?

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CE 374K Hydrology

CE 374K Hydrology. Frequency Factors. Frequency Analysis using Frequency Factors. The magnitude of an extreme event can be thought of as a departure from the mean expressed as a number of standard deviations The frequency factor, , is a number in the range (-1, 5) that depends on:

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Chapter 28

Chapter 28. The Theory of Active Portfolio Management. Lure of Active Management. Are markets totally efficient? Some managers outperform the market for extended periods While the abnormal performance may not be too large, it is too large to be attributed solely to noise

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Population distribution VS Sampling distribution

Population distribution VS Sampling distribution.

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Markowitz Model

Markowitz Model. For 3-stock portfolio, short selling allowed. Eg. R A = 20% R B = 10% R C = 8% ? 2 A =100 ? 2 B =25 ? 2 C =16 ? AB = 15 ? AC = 20 ? BC = 4. Markowitz Model. Form the Lagrangian. Markowitz Model: Solution. For R* = 15% w A = 50.214%

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Normal Probabilities

Normal Probabilities. 1. Find the probability P(x ? x 0 ), where x is a normally distributed random variable Click Insert Function ( f x ) Select Statistical as your function category Choose NORM.DIST. 2. Normal Probabilities.

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2007 Car Accidents by Age in Us

2007 Car Accidents by Age in Us. By Daniel Demboske. Start Data. You now have to find the average of the data. When you add the numbers up you get 3,553. Next you take the average and find the difference one number at a time. You now take the differences and square them.

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Ch 5: Hypothesis Tests With Means of Samples

Ch 5: Hypothesis Tests With Means of Samples. Pt 3: Sept. 17, 2013. Confidence Intervals. CI is alternative to a point estimate for an unknown population mean Last week, we discussed how to calculate 95% and 99% CI (both 1 and 2-tailed). Now, how to use these CI for hypothesis testing

184 views • 5 slides