FInal

Question 1

what is the formula for confidence interval

Answer 1

x bar + or minus (z sub critical value)(sigma xbar)

Question 2

what is single sample t test confidence interval formula

Answer 2

x bar + or - (2 tailed critical value) (S sub x bar)

Question 3

what is the formula for independent samples t-test confidence interval

Answer 3

(x bar sub 1 - x bar sub 2) + or - (t sub critical value) (S x bar sub 1 - x bar sub 2

Question 4

what is the formula for dependent samples t test confidence interval

Answer 4

D bar + or - t sub critical value (S sub D bar)

Question 5

what is cohens d for

Answer 5

size of effect IV had on DV

Question 6

what is cohens d formula z test

Answer 6

d = x bar - null population over sigma

Question 7

what is cohens d formula single sample t test and what is the formula for ass hat in single sample t test

Answer 7

d = x bar - null population over ass hat

Question 8

what is cohens d formula for independent samples t test and what is its ass hat formula

Answer 8

d= x bar sub 1 - x bar sub 2 divided by ass hat
ass hat = (all square rooted) small n (S sub x bar sub 1 - x bar sub 2)

Question 9

what is cohens d formula for dependent samples t test and what is its asshat formula

Answer 9

d= x bar sub 1 - x bar sub 2 divided by asshat
ass hat = (all square rooted) capital N(S sub d bar)

Question 10

what is the formula for effect size for F ratio in a one way ANOVA

Answer 10

eta squared (long n) = SSbetween divided by SStotal

Question 11

what is the formula for effect size for F ratio in a factorial ANOVA

Answer 11

eta squared sub p= SSeffect divided by SSeffect + SSwithin

Question 12

what is the pearson correlation coefficient formula

Answer 12

r= N the sum of XY - (the sum of x) (the sum of Y) divided by (all square rooted) [N the sum of x squared - (the sum of X) squared] [ N the sum of Y squared - (the sum of Y) squared]

Question 13

what is the formula for linear regression

Answer 13

Y hat =bX+a

Question 14

what is spearmans correlation formula

Answer 14

spearmans p= 1- [6the sum of D squared divided by N(N squared-1)]

Question 15

what is a non parametric test

Answer 15

experiments that do not require population to make assumptions

Question 16

what is the chi square goodness of fit test for a single independent value formula

Answer 16

chi square = sum of (f sub o - f sub e) squared divided by f sub e

Question 17

what is the formula for f sub e goodness of fit test

Answer 17

f sub e = total divided by number of categories

Question 18

what is the chi square test of independence for two independent variables

Answer 18

chi square = sum of (f sub o - f sub e) squared divided by f sub e

Question 19

what is the formula for f sub e in a chi squared test of independence

Answer 19

f sub e = (row total)(column total) divided by overall total

Question 20

what is the non parametric alt to independent samples t test

Answer 20

Mann whitney U

Question 21

what is the formula for the mann whitney U test

Answer 21

U sub CND 1 = (n sub CND1) (n sub CND 2)+ n sub CND 1( n sub CND 1 +1) divided by 2 - sum of rank of CND 1

Question 22

in mann whitney u the u must be ____ to be considered significant

Answer 22

smaller than the cv

Question 23

what is the formula for the kruskal wallis test

Answer 23

h= 12 divided by N(N+1) (The sum of Tsub i squared divided by n sub i) -3(N+1)

Question 24

what is the formula for the freidman test

Answer 24

chi square sub r = 12 divided by (nk)(k+1) (The sum of r sub i squared) -3n(k+1)