Determine the nul and alternative hypotheses, b explain what it would mean to ma

Question

Determine the nul and alternative hypotheses, b explain what it would mean to make a type I error and C explain what it would mean to make a type II error six year ago. 12 1% of registered births were to teenage mothers A sociologist believes that the percentage lias increased since then Which of the following is a type I error? The sociologist rejects the hypothesis that the percentage of births to teenage mothers is 1? 1% when it is the hue percentage The sociologist fails to reject the hypothesis that the percentage of births to teenage mothers is 1? 1%. when the true percentage is greater than 1? 1% The sociologist rejects the hypothesis that the percentage of births to teenage mothers is 1? 1% when the true percentage is greater than 12 1% Which of the following is a type II error?

Explanation / Answer

a)

Ho: p = 0.121
Ha: p > 0.121 [ANSWER, C]

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b)

A type I error is incorrectly rejecting a true null hypothesis. Hence,

OPTION A. [ANSWER]

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c)

A type II error is incorrectly failing to reject a false null hypothesis. Hence,

OPTION A. [ANSWER]

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