Answered: What would be the null hypothesis for a…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Question

According to an article in a recently published medical journal, one-third of all sets of triplets consist of all females, one-fourth are all male sets, and the remaining sets are of mixed gender. A simple random sample of 78 sets of triplets born in the past 20 years is obtained from hospital records. The results are presented below.

Gender make-up of triplets

1: All female	2: All male	3: Mixed gender	Total
10	11	57	78

What would be the null hypothesis for a chi-square test for testing if the claim made in the medical journal is indeed true?

Group of answer choices

H₀: p₁ = 1/3, p₂ = 1/4, and p₃ = 5/12, where p₁, p₂, and p₃ represent the proportions of all female, all male, and mixed gender triplets, respectively

H₀: p₁ = p₂ = p₃ = 5/12, where p₁, p₂, and p₃ represent the proportions of all female, all male, and mixed gender triplets, respectively

H₀: p₁ = 1/4, p₂ = 1/4, and p₃ = 5/12, where p₁, p₂, and p₃ represent the proportions of all female, all male, and mixed gender triplets, respectively.

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