Question: Data were collected on the heights of singers and are summarized and displayed below. Does average height differ by voice? (a) State the null and

Data were collected on the heights of singers and are summarized and displayed below. Does average height differ by voice?

mean sd alto bass soprano tenor 64.88571 70.71795 64.25000 2.794653 35 2.361408 39 1.872737 36 3.216323 69.15000 20

bass tenor alto soprano Height (inches) 60 65 70 75

(a) State the null and alternative hypotheses.
(b) Are the conditions for using the F-distribution satisfied? Why or why not?
(c) Complete the ANOVA table given below, and make a conclusion in context.

mean sd alto bass soprano tenor 64.88571 70.71795 64.25000 2.794653 35 2.361408

mean sd alto bass soprano tenor 64.88571 70.71795 64.25000 2.794653 35 2.361408 39 1.872737 36 3.216323 69.15000 20 bass tenor alto soprano Height (inches) 60 65 70 75

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a Letting denote mean height we have the hypotheses H 0 B T A S H a At least one i j b Yes ... View full answer

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