(Answered) 1 consider the assumptions underlying the f test for

Statistics

1. Consider the assumptions underlying the F test for one-way analysis of variance (Section 16.12). Given the following data, do you believe the F test is defensible? (Explain.)

44_assumptions underlying the F test.png

2. Professor Loomis selects a sample of second-grade students from each of three schools offering different instructional programs in reading. He wishes to determine whether there are corresponding differences between these schools in the "phonological awareness" of their students. Professor Loomis has each child complete a phonological awareness inventory and obtains these results:

1881_phonological awareness.png

(a) Give H₀.

(b) Compute SS_within, SS_between, and SS_total.

(d) Conduct the F test (α = 05) and present your results in an ANOVA summary table.

(e) What is your statistical decision regarding H₀?

(f) Compute and interpret from these data.

(g) What is your substantive conclusion from this analysis? (Is your analysis complete?)

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