METHO Flashcards

1
Q

H0 signifie…

A

l’absence de différence, no effect, no relationship btw gr.

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2
Q

p> 0.05 =

A

accepte H0

pas d’effet

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3
Q

p<0,05

A

rejet H0

effet,

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4
Q

alpha =

A

erreur type 1

probabilité de rejeter h0 alors qu’il est vrai

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5
Q

beta=

A

erreur accepter probabilité alors qu’elle est fausse

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6
Q

médiane

A

separe la distribution (ordonner) en 2 gr

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7
Q

mode?

A

Categorie ak la valeur la plus représentée

la pus haute valeur

point le plus haut ds courbe

—-v. catégorielle

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8
Q

étendue

A

diff entre valeur max-min

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9
Q

écart-moyen

A

decrit comment chauqe variable est eloigner de la moyenne

- mesure de dispersion

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10
Q

variance

A

la moyenne…des carrés… des écarts

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11
Q

écart-type

A

racine carré… de la variance (la moyenne…des carrés… des écarts)
- decrit distribution par a la moyenne d’un gr.

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12
Q

coefficient de variation - def - gros vs petit?

A

rapport écart type à la moyenne

+ petit = +valeurs de distribution seront proche de la moyenne

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13
Q

Variable CARDINALE - comprends - test

A

ÉCHELLE discrète, continu

TEST T, Z, corré ded Pearson

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14
Q

Variable CATEGORIELLE - comprends - test

A

ÉCHELLE nominale, ordinale

TEST KHI-2

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15
Q

CARDINALE + CATEGORIELLE - test

A

TEST T, ANOVA

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