For Numbers 7 and 8: Researchers have long wondered whether intelligence (as measured by IQ) isaffected by "nurture" than "nature," that is, whether people's IQ scores are mostly a function oftheir upbringing and environment or if they are primarily an inherited attribute. A study wasconducted to determine the answer to the hypothesis. Since genetic differences may affectintelligence, researchers controlled this factor by conducting a "twin study". Thirty-two pairs ofidentical twins were obtained, of which one of whom is raised by birth parents and the other bysomeone else. They were reared apart and at the age of 5, their IQ scores were obtained.7. The parameter of interest isA. IQ scoresB. difference in the IQ scores of twinsC. mean IQ scores of those who were raised by birth parents and mean lIQ scores of those whowere raised by someone elseD. mean difference in the 1Q scores of those who were raised by birth parents and those whowere raised by someone else8. Upon obtaining the data, a t-test was performed, and the p-value obtained is 0.0331. Theappropriate conclusion at 5% level of significance isA. There is no sufficient evidence to say that the mean IQ scores of those who were raised bytheir birth parents and those who were raised by someone else are different.B. There is sufficient evidence to say that the mean IQ scores of those who were raised by theirbirth parents and those who were raised by someone else are different.C. There is sufficient evidence to say that the mean IQ scores of those who were raised by theirbirth parents is greater than those who were raised by someone else.D. There is sufficient evidence to say that the mean lQ scores of those who were raised bysomeone else is greater than those who were raised by their birth parents.

Question

For Numbers 7 and 8: Researchers have long wondered whether intelligence (as measured by IQ) isaffected by &#34;nurture&#34; than &#34;nature,&#34; that is, whether people's IQ scores are mostly a function oftheir upbringing and environment or if they are primarily an inherited attribute. A study wasconducted to determine the answer to the hypothesis. Since genetic differences may affectintelligence, researchers controlled this factor by conducting a &#34;twin study&#34;. Thirty-two pairs ofidentical twins were obtained, of which one of whom is raised by birth parents and the other bysomeone else. They were reared apart and at the age of 5, their IQ scores were obtained.7. The parameter of interest isA. IQ scoresB. difference in the IQ scores of twinsC. mean IQ scores of those who were raised by birth parents and mean lIQ scores of those whowere raised by someone elseD. mean difference in the 1Q scores of those who were raised by birth parents and those whowere raised by someone else8. Upon obtaining the data, a t-test was performed, and the p-value obtained is 0.0331. Theappropriate conclusion at 5% level of significance isA. There is no sufficient evidence to say that the mean IQ scores of those who were raised bytheir birth parents and those who were raised by someone else are different.B. There is sufficient evidence to say that the mean IQ scores of those who were raised by theirbirth parents and those who were raised by someone else are different.C. There is sufficient evidence to say that the mean IQ scores of those who were raised by theirbirth parents is greater than those who were raised by someone else.D. There is sufficient evidence to say that the mean lQ scores of those who were raised bysomeone else is greater than those who were raised by their birth parents.

Accepted Answer

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