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BIOL2022 L05 Testing differences between two means: 1- and 2-tailed t-tests

Descripción

Module 1, Lecture 5 By the end of this lecture you should understand: - Carrying out a t-test - One- and two-tailed t-tests
Michael Jardine
Test por Michael Jardine, actualizado hace más de 1 año
Michael Jardine
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Resumen del Recurso

Pregunta 1

Pregunta
Logical vs statistical null: x = # of koalas in Trees; y = # of koalas on Floor Hypothesis: [x] > [y] Logical Null Hypothesis: [x] [blank_start]____[blank_end] [y] Statistical Null Hypothesis: [x] [blank_start]____[blank_end] [y]
Respuesta
  • ≤
  • =
  • <

Pregunta 2

Pregunta
Type I vs Type II errors
Image:
L05 Image 1 (binary/octet-stream)
Respuesta
  • Type I
  • Type II

Pregunta 3

Pregunta
A t-test compares:
Respuesta
  • Means
  • Variance
  • Error

Pregunta 4

Pregunta
1-tailed vs 2-tailed t-tests: Which one is directional?
Respuesta
  • 1-tailed
  • 2-tailed
  • Both
  • Neither
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