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Statistics MAN-MOR004 Totaaloverzicht / samenvatting - Statistiek $4.86   Add to cart

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Statistics MAN-MOR004 Totaaloverzicht / samenvatting - Statistiek

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Heel compact, maar zéér effectief overzicht. Auteur (ik) heb met dit zelfgemaakte overzicht een 9,5 gehaald voor het tentamen van het vak 'Statistics'. Het is een totaaloverzicht met alle toetsingen die je dient te kennen, in de totale context geplaatst. Het overzicht gaat in zijn totaliteit na w...

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  • July 14, 2020
  • 9
  • 2019/2020
  • Summary

5  reviews

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By: benjaminkoster • 1 year ago

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By: frankmaalderink • 3 year ago

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Clear overview of the necessary analyses, the only drawback is that no SPSS effects are displayed.

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By: ricardo10-8 • 3 year ago

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By: merlijnjanssen1 • 3 year ago

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By: rikkert1998 • 3 year ago

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Totaaloverzicht
Wat willen we doen? Met welke test doen we dit? Welke opties zijn er nog meer?
Data beschrijven Central tendency
Dispersion
Waarschijnlijkheid van een Confidence interval (z-/t-test) Kan ook voor proporties
gevonden sample-waarde
bepalen
Chi2
Correlatie opsporen (N/O) Elaboration model: onder 3e
variabele testen
Cramer’s V: sterkte van de
correlatie bepalen
Spearman’s rank (O/I/R) Partial correlation: onder 3e
variabele testen
Pearson’s correlation (I/R)
Verschil in means en medians Independent samples test
opsporen (I/R) bij independent samples
Mann Whitney U test (O) bij
independent samples
Paired samples test (I/R) bij
dependent samples
Wilcoxon test (O) bij
dependent samples
Causaliteiten opsporen (simple F-test
and multiple lineair regression Significance test regression
model) coefficients
(Adjusted) R2 test

, Data beschrijven
Kan met:
1. Frequency tables. Werkt voor iedere measurement level hetzelfde.
2. Central tendency en variability (=dispersion). Het gebruik hiervan verschilt per level.

Onthoud:
Qualitative data = nominal/ordinal (=categorical variables)
Quantitative data = interval/ratio (=continous variables)

Central tendency
Populatie Sample Measurement level Wat is het?
Mode - - N/O/I/R Meest voorkomende
Median - M O/I/R Middelste meting
Mean µ X I/R Gemiddelde

Dispersion
Populatie Sample Measurement level Wat is het?
Range - - O/I/R Hoogste – laagste meting
Interquartile range IQR IQR O/I/R Middelste 50%,
dus Q3 (75%) – Q1 (25%)
Variance σ2 s2 I/R
Standard deviation σ s I/R Afwijking van het
gemiddelde

Uitspraak doen over het percentage waarnemingen binnen een bepaald interval
Rule Empirical (mean = median, Chebychevs (mean ≠ median,
normaal verdeling) skewed)
1* σ naar links én rechts van µ 68% ?
2* σ naar links én rechts van µ 95% 75%
3* σ naar links én rechts van µ 99,7% 88,9%

Skewness bepalen
Positively skewed = mean > median (dus de bult zit voorin)
Negatively skewed = mean < median (dus de bult zit achteraan

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