Hypothesis Testing and Inference

Table 3

µ = 100 seconds and σ = 30

Child	Mean seconds of concentration in an experiment of reading	z-score	p-value
	75	-0.83
	81	-0.63
	89	-0.37
	99	-0.03
	115	0.50
	127	0.09
	138	1.27
	139	1.30
	142	1.40
10	148	1.60

Which child or children, if any, appeared to come from a significantly different population than the one used in the null hypothesis?

What happens to the "significance" of each child’s data as the data are progressively more dispersed?

Provide a formal APA statement of conclusion for each child.

Table 4

µ = 100 seconds and σ = 40

Child	Mean seconds of concentration in an experiment of reading	z-score	p-value
	75	-0.63
	81	-0.48
	89	-0.28
	99	-0.03
	115	0.38
	127	0.68
	138	0.95
	139	0.98
	142	1.05
10	148	1.20

Which child or children, if any, appeared to come from a significantly different population than the one used in the null hypothesis?

What happens to the "significance" of each child’s data as the data are progressively more dispersed?

Provide a formal APA statement of conclusion for each child.

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Biostatistical Methods