Critical Thinking Questions Case 4-1 Your Cousin Jeff Wants to Create

question 83

Multiple Choice

Critical Thinking Questions Case 4-1 Your cousin Jeff wants to create a Web site to promote his hobby. Jeff knows that you have been learning to create Web sites using Expression We b. Over coffee at your house, Jeff asks a few questions about Web site planning. The next time you speak with Jeff, he tells you he has been learning about using Cascading Style Sheets (CSS) to layout and format Web pages. Then he says that he is still a little confused about the difference between external and internal style sheets. You tell Jeff that ____.

• A) an external style sheet is a style rule contained in the body of a Web page and an internal style sheet is a separate file that contains style rules
• B) he must be really confused; external and internal style sheets are not part of CSS
• C) an internal style sheet is a set of style rules contained in the Head section of a Web page and an external style sheet is a separate file that contains style rules
• D) an external style sheet is a set of style rules contained in the Head section of a Web page and an internal style sheet is a separate file that contains style rules

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Definitions:

Confidence Interval

A range of values, derived from the sample data, that is believed, with a certain degree of probability, to contain the true population parameter.

Margin Of Error

An estimate of the amount by which an observed sample result may differ from the true value, providing a confidence interval for the estimation.

Statistic

A numerical characteristic or measure of a sample extracted from a larger population.

Student T Distributed

A probability distribution used in statistical analysis when the sample size is small and the population variance is unknown.