Karteikarten
Module 5-9 terms
Karten in diesem Stapel (13)
- 1discrete distribution-for integers
-vertical bars, no spaces
-vertical axis: probability mass - 2continuous distribution-continuous variables(fractions/decimals
-curve
-vertical axis: probability mass - 3law of large numbersproportions stabilize over a great many trials
- 4alternative hypothesisthe research question
- 5single sample t-testsee if mean of sample different from reference value
-null: opposite of what interested in - 6paired sample t-test2 values for same sampling unit
-before/after - 7two sample t-test or independent t-testcompare means of 2 groups
-NO reference values - 8null distributionthe sampling distribution of outcomes for the test statistic under the assumption that the null hypothesis is true
- 9sampling errorvariation among repeated samples that is the result of sampling from a population
- 10p-valueprobability of observing your data, or something more extreme, under the null hypothesis
- 11Type I errorrejecting the null hypothesis even though it is true
- 12type II errorfailing to reject something that is false
- 13type I error rate (alpha ⍺)used to decide the point where data is far enough away from the null hypothesis that it needs to be rejected
-defines what is extreme
Informationen
- Beschreibung
- University STAM 200 Karteikarten am Module 5-9 terms, erstellt von Sabreena Haque am 13/07/2022.
- Erstellt von
- Sabreena Haque
- Aufrufe
- 0
- Bewertung