Beautification

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Tests of Normality
Low formality ( on paper )

Figure G4. An illustration of the Times New Roman typeface in different sizes in My Font Tool for the Tablet PC.
Appendix H. Testing the normality assumption – Total number of changes made across levels of formality

			Statistic	Std. Error
Low formality (on paper)	Mean		18.733	1.1996
	95% Confidence Interval for Mean	Lower Bound	16.280
		Upper Bound	21.187
	5% Trimmed Mean		18.815
	Median		19.500
	Variance		43.168
	Std. Deviation		6.5702
	Minimum		5.0
	Maximum		30.0
	Range		25.0
	Interquartile Range		9.5
	Skewness		-.108	.427
	Kurtosis		-.680	.833
Low formality (on Tablet PC)	Mean		15.167	.7567
	95% Confidence Interval for Mean	Lower Bound	13.619
		Upper Bound	16.714
	5% Trimmed Mean		15.074
	Median		15.000
	Variance		17.178
	Std. Deviation		4.1447
	Minimum		7.0
	Maximum		26.0
	Range		19.0
	Interquartile Range		6.0
	Skewness		.381	.427
	Kurtosis		.525	.833
Medium-low formality	Mean		14.000	.7428
	95% Confidence Interval for Mean	Lower Bound	12.481
		Upper Bound	15.519
	5% Trimmed Mean		13.944
	Median		13.500
	Variance		16.552
	Std. Deviation		4.0684
	Minimum		7.0
	Maximum		23.0
	Range		16.0
	Interquartile Range		6.3
	Skewness		.063	.427
	Kurtosis		-.560	.833
Medium-high formality	Mean		13.133	.7042
	95% Confidence Interval for Mean	Lower Bound	11.693
		Upper Bound	14.574
	5% Trimmed Mean		13.111
	Median		13.500
	Variance		14.878
	Std. Deviation		3.8572
	Minimum		7.0
	Maximum		20.0
	Range		13.0
	Interquartile Range		6.3
	Skewness		-.051	.427
	Kurtosis		-1.165	.833
High formality	Mean		11.267	.6414
	95% Confidence Interval for Mean	Lower Bound	9.955
		Upper Bound	12.578
	5% Trimmed Mean		11.259
	Median		11.500
	Variance		12.340
	Std. Deviation		3.5129
	Minimum		6.0
	Maximum		17.0
	Range		11.0
	Interquartile Range		6.3
	Skewness		-.054	.427
	Kurtosis		-1.369	.833

Tests of Normality

	Kolmogorov-Smirnov(a)			Shapiro-Wilk
	Statistic	df	Sig.	Statistic	df	Sig.
Low formality (on paper)	.083	30	.200(*)	.976	30	.703
Low formality (on Tablet PC)	.116	30	.200(*)	.982	30	.873
Medium-low formality	.103	30	.200(*)	.976	30	.725
Medium-high formality	.152	30	.073	.946	30	.133
High formality	.124	30	.200(*)	.931	30	.052

* This is a lower bound of the true significance.

a Lilliefors Significance Correction

Low formality (on paper)

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