Answered: What would be the null hypothesis for a…

College Algebra

10th Edition

ISBN:9781337282291

Author:Ron Larson

Publisher:Ron Larson

Chapter8: Sequences, Series,and Probability

Section8.7: Probability

Problem 4ECP: Show that the probability of drawing a club at random from a standard deck of 52 playing cards is...

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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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