Inferential Statistics Cases
Copyright © 2007–2010 by Stan Brown, Oak Road Systems
Copyright © 2007–2010 by Stan Brown, Oak Road Systems
Summary: This table organizes procedures for inferential statistics into a chart of Cases. If you print this page, use Landscape mode for best results.
See also: Triage: Which Inferential Stats Case Should I Use?
| Case Number and Description |
Text Sec. |
Pop. Param. | TI-83/84/89 Procedures | |
|---|---|---|---|---|
| * These cases are not required for TC3 MATH200. For just the MATH200 cases, see Inferential Statistics: Basic Cases. | ||||
| NUMERIC DATA
SRS required: n ≥ 30, or sample is ND with no outliers | ||||
| 0 | One pop. mean, known σ | 9.1, 10.2 | μ | CI: ZInterval; HT: Z-Test; sample size: MATH200A part 6 |
| 1 | One pop. mean, unknown σ | 9.2, 10.3 | μ | CI: TInterval; HT: T-Test; sample size (optional): MATH200A part 6 |
| 1S* | One pop. standard dev. | C.2, C.3 | σ | CI and HT: MATH200B part 5 (not TI-89) |
| 3 | Mean difference for paired data | 11.1 | μd | CI: TInterval; HT: T-Test;
(optional) List Operations for Paired t Test on TI-83/84 |
| 4 | Difference of 2 indep. pop. means | 11.2 | μ1−μ2 | CI: 2-SampTInt; HT: 2-SampTTest |
| 4S* | Two pop. standard dev. | none | σ1/σ2 | CI: n/a; HT: 2-SampFTest |
| 8* | Equality of several pop means | C.4 | μ1, μ2, μ3, ... | CI: undefined; HT: ANOVA; see also One-Way ANOVA |
| 9* | Linear correlation coefficient | none | ρ or r | CI and HT: MATH200B part 6 (TI-89 HT: LinRegTTest) |
| 10B* | Slope of regression line | 12.3 | β1 | CI and HT: MATH200B part 7 (TI-89 CI: LinRegTInt; TI-89 HT: LinRegTTest) |
| 10Y* | Predicted values of y | 12.4 | μy|xj, yj | MATH200B part 7 (not TI-89) |
| BINOMIAL DATA
SRS required: n p̂ (1−p̂) ≥ 10 and 20 n ≥ N | ||||
| 2 | One pop. proportion | 9.3, 10.4 | p | CI: 1-PropZInt; HT: 1-PropZTest; sample size: MATH200A part 6 |
| 5 | Difference of 2 pop. proportions | 11.3 | p1−p2 | CI: 2-PropZInt; HT: 2-PropZTest; sample size: MATH200A part 6 |
| CATEGORICAL DATA
SRS required: no E’s < 1 and no more than 20% of all E’s < 5 | ||||
| 6 | Goodness of fit (GOF) or multinomial | 12.1 | none | CI: undefined; HT: MATH200A part 7 (TI-89: Chi2 GOF or Testing Goodness of Fit on TI-89) |
| 7 | Independence or homogeneity (in contingency table) |
12.2 | none | CI: undefined; HT: χ²-Test (TI-89: Chi2 2-way) |
Acknowledgement: This table was inspired by Dabes & Janik’s Statistics Manual (1999) page 163; I have modified the format substantially and added cases 1S, 4S, 8, 9, 10B, 10Y.
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