9th Edition

ISBN: 9781323788721

Author: Tannenbaum

Publisher: PEARSON C

Concept explainers

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.

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Textbook Question

Chapter 4, Problem 9E

The Interplanetary Federation of Fraternia consists of six planets: Alpha Kappa, Beta Theta, Chi Omega, Delta Gamma, Epsilon Tau, and Phi Sigma (A, B, C, D, E, and F for short). The federation is governed by the Inter-Fraternia Congress, consisting of 200 seats apportioned among the planets according to their populations. Table 4 − 27 _ gives the planet populations as percentages of the total population of Fraternia:

Table 4 − 2 7

Planet	A	B	C	D	E	F
Population percentage	11.37	8.07	38.62	14.98	10.42	16.54

a. Find the standard divisor (expressed as a percent of the total population).

b. Find the standard quota for each planet.

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Chapter 4, Problem 8E

Chapter 4, Problem 10E

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