There Are a Number of Highly Touted Search Engines for Finding

question 109

Multiple Choice

There are a number of highly touted search engines for finding things of interest on the Internet. Recently, a consumer rating system ranked two search engines ahead of the others. Now, a computer user's magazine wishes to make the final determination regarding which one is actually better at finding particular information. To do this, each search engine was used in an attempt to locate specific information using specified keywords. Both search engines were subjected to 100 queries. Search engine 1 successfully located the information 88 times and search engine 2 located the information 80 times. Using a significance level equal to 0.05, which of the following is true?

• A) Based the sample data, the null hypothesis of equal population proportions is rejected since the test statistic exceeds the critical value.
• B) Based on the sample data, the null hypothesis should not be rejected since the test statistic of z = 2.04 exceeds the critical value of z = 1.96.
• C) According to the test results, the hypothesis should be rejected since the test statistic value, z = 1.54, falls in the rejection region.
• D) Based on the sample data, there is not sufficient evidence to conclude that a difference exists between the proportion of search hits since the test statistic, z = 1.54, does not fall in the rejection region.

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Definitions:

Conscience

An inner feeling or voice acting as a guide to the rightness or wrongness of one's behavior, often associated with moral and ethical judgments.

Alexander Hamilton

A Founding Father of the United States, who was an influential interpreter and promoter of the U.S. Constitution, as well as the founder of the nation's financial system, the Federalist Party, and the Coast Guard.

John Quincy Adams

The sixth President of the United States, serving from 1825 to 1829, known for his diplomatic contributions before his presidency and his advocacy for various causes, including anti-slavery, during his post-presidency in Congress.

American Vision

The concept or perception of the United States' identity, values, and goals, especially as it relates to its future direction and place in the world.