Data sets a and b are dependent Find d a 31 29 48 44 32 B 29

Data sets a and b are dependent. Find d

a: 31 29 48 44 32

B: 29 25 26 36 23

Assume paired data came from normally distributed population

Data sets a and b are dependent. Find d

a: 31 29 48 44 32

B: 29 25 26 36 23

Assume paired data came from normally distributed population

a: 31 29 48 44 32

B: 29 25 26 36 23

Assume paired data came from normally distributed population

Solution

d = difference between a and b

a	31	29	48	44	32
b	29	25	26	36	23
d	2	4	22	8	9	45
d^2	4	16	484	64	81	649
Mean d	9
E(d^2)	129.8
Var	48.8
Std dev	6.9857