Observed Frequencies (O) Drug Placebo Row total
0-25% 15 36 51
26-50% 37 45 82
51-75% 32 34 66
76-100% 41 10 51
Column Total 125 125 250
O
Ho Living arrangement and exercise are depende
H1 Living arrangement and exercise are indepen
Alpha 0.05
df=(r-1)*(c-1)
r-1 1
c-1 3 (O-E)^2/E
df=(r-1)*(c-1) 3 Drug
4.32352941176471
Keep H0 0.390243902439024
Reject H0 0.0303030303030303
9.42156862745098
, Expected Frequecies Drug Placebo Row total
0-25% 25.5 25.5 51
26-50% 41 41 82
51-75% 33 33 66
76-100% 25.5 25.5 51
Column Total 125 125 250
E Frequency=(r-total*c-total)/N
(O-E)^2/E
Placebo Regular exercise
4.32352941176471 #DIV/0!
0.390243902439024 #DIV/0!
0.0303030303030303 #DIV/0!
9.42156862745098 #DIV/0!
Chi Square 28.3312899439155
P-Value 3.094575994667E-06 is less than alpha @ 0.05
there is sufficient evidence to conclude that treatment and percent wound healing are not ind
,d healing are not independent.
0-25% 15 36 51
26-50% 37 45 82
51-75% 32 34 66
76-100% 41 10 51
Column Total 125 125 250
O
Ho Living arrangement and exercise are depende
H1 Living arrangement and exercise are indepen
Alpha 0.05
df=(r-1)*(c-1)
r-1 1
c-1 3 (O-E)^2/E
df=(r-1)*(c-1) 3 Drug
4.32352941176471
Keep H0 0.390243902439024
Reject H0 0.0303030303030303
9.42156862745098
, Expected Frequecies Drug Placebo Row total
0-25% 25.5 25.5 51
26-50% 41 41 82
51-75% 33 33 66
76-100% 25.5 25.5 51
Column Total 125 125 250
E Frequency=(r-total*c-total)/N
(O-E)^2/E
Placebo Regular exercise
4.32352941176471 #DIV/0!
0.390243902439024 #DIV/0!
0.0303030303030303 #DIV/0!
9.42156862745098 #DIV/0!
Chi Square 28.3312899439155
P-Value 3.094575994667E-06 is less than alpha @ 0.05
there is sufficient evidence to conclude that treatment and percent wound healing are not ind
,d healing are not independent.
