Links
Central Limit Theorem (Khan Academy):
http://www.youtube.com/watch?v=JNm3M9cqWyc&feature=fvwrel
Statlets (Kady Schneiter):
http://www.math.usu.edu/~schneit/CTIS/
For all practical purposes - Confident conclusions (Annenberg Media):
http://video.google.com/videoplay?docid=7985836251509664787#
Chapter 19:
Standard Error (P.B. Stark, UC Berkeley)
http://www.stat.berkeley.edu/~stark/SticiGui/Text/standardError.htm
Chapter 20:
The Normal Curve, the Central Limit Theorem, and Markov's and Chebychev's Inequalities (P.B. Stark, UC Berkeley)
http://www.stat.berkeley.edu/~stark/SticiGui/Text/clt.htm
Chapter 21, Sampling (P.B. Stark, UC Berkeley)
http://www.stat.berkeley.edu/~stark/SticiGui/Text/sampling.htm
Chapter 22
Estimating Parameters from Simple Random Samples (P.B. Stark, UC Berkeley)
http://www.stat.berkeley.edu/~stark/SticiGui/Text/estimation.htm
Chapter 23
Confidence Intervals (P.B. Stark, UC Berkeley)
http://www.stat.berkeley.edu/~stark/SticiGui/Text/confidenceIntervals.htm
NYtimes explaining their polling practice: