A developmental psychologist would like to know whether there is a difference in the sociability scores...

A developmental psychologist would like to know whether there is a difference in the sociability scores of children according to the number of siblings they have. He chose three random samples of n = 5 children each according to three groups and measured their level of sociability using a standardized test. The scores are shown in the table below. Do the scores indicate significant differences among the three groups?

No Sibling**	x^2	SS1	One Sibling**	x^2	SS2	Two Siblings**	x^2	SS3
4	16	0.36	7	49	0.16	8	64	0.04
5	25	0.16	7	49	0.16	9	81	0.64
7	49	5.76	6	36	0.36	7	49	1.44
3	9	2.56	6	36	0.36	8	64	0.04
4	16	0.36	7	49	0.16	9	81	0.64
23	115	9.2	33	219	1.2	41	339	2.8

a. Using the 5 steps of hypothesis testing, test at α .05. (15 pts)

b. Conduct two post hoc tests, Tukey’s HSD Test and the Scheffe Test, both at α .05, and compare your answers. (9 pts)

Need help with the ten step by hand ANOVA ... specifically the sum of squres/between/within calculations in the hypothesis testing

and the steps associated with the post hoc tests

Thank you!!

Solutions

Expert Solution

milcah answered 9 months ago

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