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Mathematics & Statistic Tutor Perth - SPSS Help

Tests of Normality
	Kolmogorov-Smirnova			Shapiro-Wilk
	Statistic	df	Sig.	Statistic	df	Sig.
difference	.172	8	.200^*	.956	8	.769
*. This is a lower bound of the true significance.
a. Lilliefors Significance Correction

Descriptives
			Statistic	Std. Error
difference	Mean		1112.5000	514.23921
	95% Confidence Interval for Mean	Lower Bound	-103.4825
		Upper Bound	2328.4825
	5% Trimmed Mean		1086.1111
	Median		1150.0000
	Variance		2115535.714
	Std. Deviation		1454.48813
	Minimum		-900.00
	Maximum		3600.00
	Range		4500.00
	Interquartile Range		2325.00
	Skewness		.241	.752
	Kurtosis		.102	1.481

Paired Samples Test
		Paired Differences					t	df	Sig. (2-tailed)
		Mean	Std. Deviation	Std. Error Mean	95% Confidence Interval of the Difference
					Lower	Upper
Pair 1	Y - X	1112.50000	1454.48813	514.23921	-103.48251	2328.48251	2.163	7	.067

Paired Samples Test
		Paired Differences					t	df	Sig. (2-tailed)
		Mean	Std. Deviation	Std. Error Mean	95% Confidence Interval of the Difference
					Lower	Upper
Pair 1	Y - X	1112.50000	1454.48813	514.23921	-103.48251	2328.48251	2.163	7	.067

Tests of Normality^a
	Kolmogorov-Smirnov^b			Shapiro-Wilk
	Statistic	df	Sig.	Statistic	df	Sig.
RunTime	.118	5	.200^*	.999	5	.999
*. This is a lower bound of the true significance.
a. Company = A

Tests of Normality^a
	Kolmogorov-Smirnov^b			Shapiro-Wilk
	Statistic	df	Sig.	Statistic	df	Sig.
RunTime	.236	7	.200^*	.839	7	.098
*. This is a lower bound of the true significance.
a. Company = B

Descriptives
	Company			Statistic	Std. Error
RunTime	A	Mean		98.4000	3.90640
		95% Confidence Interval for Mean	Lower Bound	87.5541
			Upper Bound	109.2459
		5% Trimmed Mean		98.3889
		Median		98.0000
		Variance		76.300
		Std. Deviation		8.73499
		Minimum		87.00
		Maximum		110.00
		Range		23.00
		Interquartile Range		16.00
		Skewness		.057	.913
		Kurtosis		-.309	2.000
	B	Mean		110.7143	12.16497
		95% Confidence Interval for Mean	Lower Bound	80.9477
			Upper Bound	140.4809
		5% Trimmed Mean		108.7381
		Median		97.0000
		Variance		1035.905
		Std. Deviation		32.18547
		Minimum		82.00
		Maximum		175.00
		Range		93.00
		Interquartile Range		35.00
		Skewness		1.563	.794
		Kurtosis		2.518	1.587

Independent Samples Test
		Levene's Test for Equality of Variances		t-test for Equality of Means
		F	Sig.	t	df	Sig. (2-tailed)	Mean Difference	Std. Error Difference	95% Confidence Interval of the Difference
									Lower	Upper
RunTime	Equal variances assumed	3.887	.077	.824	10	.429	12.31429	14.95207	-21.00100	45.62957
	Equal variances not assumed			.964	7.187	.366	12.31429	12.77679	-17.73974	42.36831

Independent Samples Test
		Levene's Test for Equality of Variances		t-test for Equality of Means
		F	Sig.	t	df	Sig. (2-tailed)	Mean Difference	Std. Error Difference	95% Confidence Interval of the Difference
									Lower	Upper
RunTime	Equal variances assumed	3.887	.077	.824	10	.429	12.31429	14.95207	-21.00100	45.62957
	Equal variances not assumed			.964	7.187	.366	12.31429	12.77679	-17.73974	42.36831

Independent Samples Test
		Levene's Test for Equality of Variances		t-test for Equality of Means
		F	Sig.	t	df	Sig. (2-tailed)	Mean Difference	Std. Error Difference	95% Confidence Interval of the Difference
									Lower	Upper
RunTime	Equal variances assumed	3.887	.077	.824	10	.429	12.31429	14.95207	-21.00100	45.62957
	Equal variances not assumed			.964	7.187	.366	12.31429	12.77679	-17.73974	42.36831


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