Flashcards
ST512_1
Cards in this deck (36)
- 1When variance unknown and the sample is normal, what confidence interval is used (regardless of n)?
- 2When variance unknown and sample dist. unknown, what confidence interval is used (regardless of n)?Normal approx
- 3What is the Wilson score interval for proportions and why is it preferable to wald?closer to actual coverage prop, won't cover negatives
- 4What's Agresti-coull, why is it preferable to wald?Solves the inclusion of zero that crops up in wald
- 5What is the standard error for proportions independently sampled/how does it change for dependent sampling?
- 6How do you calculate sample size for a z-test (half alpha by 2 for 2-sided test)
- 7What's power for a z-test?
- 8What's the normality assumption when dealing w/ binomial responses?np ≥ 5 and n(1 − p) ≥ 5
- 9What're the power and samp. size calcs for a bino. prop?
- 10What is the normal approximation of the standard error for a difference in means?
- 11What is the std. error for a diff in means assuming uneq. var?
- 12What is the std. error for a diff in means assuming eq. var?
- 13How do the sample size calculations differ?Very similar to the calculations for a test with one mean, but now instead of the difference in null mean and alternative it's the difference between null diff and alt. diff.
- 14When you have equal sized indep samples, what test stat is used for a test in difference of proportion?
- 15For uneq. Indep samples, what test stat is used?Or the score test, if null diff is 0
- 16For dependent samples what test stat is used?
- 17What is the sample correlation coefficient?
- 18What is the confidence interval form for correlation?
- 19What're the point estimators for intercept and slope in SLR?
- 20What're the regression assumptions?
- 21What are the standard errors of the reg. params?
- 22What is the standard error of estimator for the predicted response at x?
- 23What is the standard deviation of prediction error at x?
- 24What is the definition of R^2?
- 25What are the 3 basic sums of squares?
- 26What is adjusted R^2?
- 27What is R-notation?
- 28What is Intra-Class Correlation, and how is it calculated?
- 29What is the Coefficient of variation, and how is it calculated?
- 30What is the confidence interval for the grand mean in a one-way random effects model.
- 31What is the confidence interval for overall variance in a one-way random effects model?
- 32What is the confidence interval for the variance of the random effect?
- 33What's the CI for the ICC?
- 34What are the different EMS for crossed two-way and how do you go about finding estimates for variances?
- 35How do you find the standard error and df for an estimate of a 2-way crossed random effects model?
- 36What are the different EMS for nested two-way and how do you go about finding estimates for variances?
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- Flashcards on ST512_1, created by David Elsheimer on 09/06/2019.
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- David Elsheimer
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