Twenty Economists Were Sampled and Asked to Predict If the National

question 82

Multiple Choice

Twenty economists were sampled and asked to predict if the national economy would improve during the next 12 months. Eleven of the economists predicted an increase,two economists predicted no change,and seven economists predicted a decrease in the economy. Conduct a hypothesis test at the 0.10 significance level to determine if the majority of economists predicts an increase. Based on the analysis,we would conclude that ________.

• A)the economists predict an increase in the economy
• B)the economists predict a decrease in the economy
• C)the economists predict no change in the economy
• D)no conclusion can be reached

---

Definitions:

Huntington's Disease

A genetic disorder characterized by the progressive breakdown of nerve cells in the brain, leading to deterioration of physical and mental abilities.

Dominant Mutant Allele

A variant of a gene that is more potent in expressing its trait even in the presence of its normal counterpart.

Heterozygote Advantage

A phenomenon in which the heterozygous condition confers some special advantage on an individual that either homozygous condition does not (i.e., Aa has a higher degree of fitness than does AA or aa).

Chorionic Villus Sampling

A prenatal test where samples of the chorionic villi are taken to test for genetic disorders in the fetus.