Thursday, November 4, 2010

Stuff to review for the second midterm.

The second midterm will cover topics from Homeworks 6, 7, 8, 9 and 10. These will include:

Distributions from independent trials (sampling with replacement)
Distributions from dependent trials (sampling without replacement)
Margins of error from opinion poll percentages (also know as the 95% confidence interval)
The confidence of victory formula
Sentences that explain margin of error and confidence of victory numbers
Modern and classic pari-mutuel payoffs (profit and risk)
Expected Value of a win-lose game
Hypothesis testing
Rejecting the null hypothesis and failing to reject the null hypothesis
Type I error (rejecting the null when you shouldn't)
Type II error (failing to reject the null when you should)
Formulas for creating the test statistic for hypothesis testing (z-scores and t-scores)
Finding the threshold number for hypothesis testing (one-tailed high, one-tailed low, two tailed)