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Confidence Intervals: Confidence Interval, Single Population Mean, Standard Deviation Unknown, Student's-t: Changed Student-T to Student's-t in title.

Confidence Intervals: Confidence Interval, Single Population Mean, Standard Deviation Unknown, Student-T: Changed "Student-t" to "Student's-t." Added some language and did other minor edits.

Confidence Intervals: Confidence Interval, Single Population Mean, Standard Deviation Unknown, Student-T: Changed "average" to "mean" where needed.

Confidence Intervals: Confidence Interval, Single Population Mean, Standard Deviation Unknown, Student-T: Added glossary item "Confidence Level (CL)."

Confidence Intervals: Confidence Interval, Single Population Mean, Standard Deviation Unknown, Student-T: Updated glossary item "Standard Deviation."

Confidence Intervals: Confidence Interval, Single Population Mean, Standard Deviation Unknown, Student-T: Updated glossary item "Error Bound for a Population Mean."

Confidence Intervals: Confidence Interval, Single Population Mean, Standard Deviation Unknown, Student-T: Updated glossary item "Confidence Interval."

Confidence Intervals: Confidence Interval, Single Population Mean, Standard Deviation Unknown, Student-T: Updated glossary item "Normal Distribution."

Confidence Intervals: Confidence Interval, Single Population Mean, Standard Deviation Unknown, Student-T: Updated glossary item "Standard Deviation."

Confidence Intervals: Confidence Interval, Single Population Mean, Standard Deviation Unknown, Student-T: Made edits for clarification in the examples.

Confidence Intervals: Confidence Interval, Single Population Mean, Standard Deviation Unknown, Student-T: Minor organizational changes.

Confidence Intervals: Confidence Interval, Single Population Mean, Standard Deviation Unknown, Student-T: Modified the text so it is easier to read and understand.

Confidence Intervals: Confidence Interval, Single Population Mean, Standard Deviation Unknown, Student-T: Edited Error Bound for the Mean formula for clarity.

Confidence Intervals: Confidence Interval, Single Population Mean, Standard Deviation Unknown, Student-T:  Updated glossary item confidence interval

Confidence Intervals: Confidence Interval, Single Population Mean, Standard Deviation Unknown, Student-T: Added to the third fact about the Student-t the sentence "In the real world, however, as long as the underlying population is large and bell-shaped, and the data are a simple random sample, practitioners often consider the assumptions met."  Added to the reference to the Student-t table "See the Table of Contents 15. Table."

In the Glossary Normal Distribution entry, changed the sentence "...the standard normal distribution or z-score" to "...the standard normal distribution or distribution of z-scores."

From the Glossary, took out the z-score formula information.

roles updated

removed draft note

fixed math typos

image review

post review updates

Updated for consistency within collection

Initial publication

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American Chemical Society (ACS) Style Guide:

Dean, S.; Illowsky, B. Confidence Intervals: Confidence Interval, Single Population Mean, Standard Deviation Unknown, Student's-t, Connexions Web site. http://cnx.org/content/m16959/1.24/, Jun 18, 2012.

American Medical Assocation (AMA) Manual of Style:

Dean S, Illowsky B. Confidence Intervals: Confidence Interval, Single Population Mean, Standard Deviation Unknown, Student's-t [Connexions Web site]. June 18, 2012. Available at: http://cnx.org/content/m16959/1.24/.

American Psychological Assocation (APA) Publication Manual:

Dean, S., & Illowsky, B. (2012, June 18). Confidence Intervals: Confidence Interval, Single Population Mean, Standard Deviation Unknown, Student's-t. Retrieved from the Connexions Web site: http://cnx.org/content/m16959/1.24/

Chicago Manual of Style (Bibliography):

Dean, Susan, and Barbara Illowsky. "Confidence Intervals: Confidence Interval, Single Population Mean, Standard Deviation Unknown, Student's-t." Connexions. June 18, 2012. http://cnx.org/content/m16959/1.24/.

Chicago Manual of Style (Note):

Susan Dean and Barbara Illowsky, "Confidence Intervals: Confidence Interval, Single Population Mean, Standard Deviation Unknown, Student's-t," Connexions, June 18, 2012, http://cnx.org/content/m16959/1.24/.

Chicago Manual of Style (Reference, in Author-Date style):

Dean, S., & Illowsky, B. 2012. Confidence Intervals: Confidence Interval, Single Population Mean, Standard Deviation Unknown, Student's-t. Connexions, June 18, 2012. http://cnx.org/content/m16959/1.24/.

Modern Languages Association (MLA) Style Manual:

Dean, Susan, and Barbara Illowsky. Confidence Intervals: Confidence Interval, Single Population Mean, Standard Deviation Unknown, Student's-t. Connexions. 18 June 2012 <http://cnx.org/content/m16959/1.24/>.