Null hypothesis Let p0 be the probability that a family with four children has no boys, p 1 be the probability that a family has one boy, and so on The null hypothesis is that the number of boys in a four child family follows a binomial distribution with n 4 and p 0 5 State the null hypothesis in terms of p0, p1, p2 , p3 , and p4 A hypothetical sample of 200 families, each with four children, was selected, and the number of boys was recorded for each The results are presented in the following table Number of boys 23 4 Observed 10 57 80 38 15

Question: Null hypothesis: Let p0 be the probability that a family with four children has no boys, p 1 be the probability that a family has

Null hypothesis: Let p0 be the probability that a family with four children has no boys, p 1 be the probability that a family has one boy, and so on. The null hypothesis is that the number of boys in a four- child family follows a binomial with n = 4 and p = 0.5. State the null hypothesis in terms of p0, p1, p2 , p3 , and p4 .
A hypothetical sample of 200 families, each with four children, was selected, and the number of boys was recorded for each. The results are presented in the following table.

Number of boys 23 4 Observed 10 57 80 38 15

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