Statistics - ANOVA Projects

ANOVA Results The following syntax needs to be used: UNIANOVA PercentageLost BY NCtype SetFlow /METHOD=SSTYPE(3)

ANOVA Results

The following syntax needs to be used:

UNIANOVA PercentageLost BY NCtype SetFlow

/METHOD=SSTYPE(3)

/INTERCEPT=INCLUDE

/EMMEANS=TABLES(NCtype*SetFlow) COMPARE (SetFlow) adj (BONFERRONI)

/POSTHOC=NCtype SetFlow(TUKEY)

/EMMEANS=TABLES(OVERALL)

/EMMEANS=TABLES(SetFlow) COMPARE ADJ(BONFERRONI)

/EMMEANS=TABLES(NCType) COMPARE ADJ(BONFERRONI)

/PRINT=ETASQ HOMOGENEITY DESCRIPTIVE

/CRITERIA=ALPHA(.05)

/DESIGN=NCtype SetFlow NCtype*SetFlow.

The following ANOVA results are obtained:

Table 1: Descriptive Statistics
Dependent Variable: percentage lost
NC Type	Set Flow	Mean	Std. Deviation	N
Premature	1 L/min	.0025	.00500	4
	2 L‎/min	.0000	.00000	4
	3 L‎/min	.0200	.00816	4
	4 L‎/min	.0350	.00577	4
	5 L‎/min	.0025	.00500	4
	6 L‎/min	.0075	.00500	4
	7 L‎/min	.0100	.00000	4
	8 L‎/min	.0700	.00000	4
	Total	.0184	.02302	32
neonatal	1 L/min	.0625	.01258	4
	2 L‎/min	.0400	.00000	4
	3 L‎/min	.0000	.00000	4
	4 L‎/min	.0025	.00500	4
	5 L‎/min	.0025	.00500	4
	6 L‎/min	.0000	.00000	4
	7 L‎/min	.0000	.00000	4
	8 L‎/min	.0100	.00000	4
	Total	.0147	.02286	32
Total	1 L/min	.0325	.03327	8
	2 L‎/min	.0200	.02138	8
	3 L‎/min	.0100	.01195	8
	4 L‎/min	.0188	.01808	8
	5 L‎/min	.0025	.00463	8
	6 L‎/min	.0038	.00518	8
	7 L‎/min	.0050	.00535	8
	8 L‎/min	.0400	.03207	8
	Total	.0166	.02283	64

Table 2: Levene's Test of Equality of Error Variances ^a
Dependent Variable: percentage lost
F	df1	df2	Sig.
3.848	15	48	.000
Tests the null hypothesis that the error variance of the dependent variable is equal across groups.
Design: Intercept + NCtype + SetFlow + NCtype * SetFlow