(a) Determine the null and alternative hypotheses, (b) explain what it would mea

Question

(a) Determine the null 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 Six years ago, 12.3% of registered births were to teenage mothers. A sociologist believes that the percentage has increased since then. (a) Which of the following is the hypothesis test to be conducted? A. H_0:p = 0.123, H_1:p 0.123 C. H_0:p = 0.123, H_1:p notequalto 0.123 (b) Which of the following is a type I error? A. The sociologist rejects the hypothesis that the percentage of births to teenage mothers is 12.3%, when the true percentage is greater than 12.3%. B. The sociologist fails to reject the hypothesis that the percentage of births to teenage mothers is 12.3%, when the true percentage is greater than 12.3%. C. The sociologist rejects the hypothesis that the percentage of births to teenage mothers is 12 3%. when it is the true percentage.

Explanation / Answer

(b) Ans: Option C.

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