There Are a Number of Highly Touted Search Engines for Finding

question 68

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, what is the null hypothesis to be tested?

• A) H0 : μ1 = μ2
• B) H0 : p1 ≠ p2
• C) H0 : 1 = 2
• D) H0 : p1 = p2

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Definitions:

Retirement

The act of leaving one's job and ceasing to work, typically due to age.

Mental Health

A state of well-being in which an individual realizes his or her own abilities, can cope with the normal stresses of life, can work productively, and is able to make a contribution to their community.

Depression

A psychological condition marked by a consistently low mood or a lack of enthusiasm for activities, significantly disrupting everyday functioning.

Dementia

A broad category of brain diseases that cause a long-term and often gradual decrease in the ability to think and remember, significantly affecting daily functioning.