General Confidence Interval Problems

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A problem like this will be on the final exam. This applet is based on problems #21, #24, #25, #26, #27 p.375 and #19, #20, #21, #22 #23 pp.387-88 of Navidi & Monk, "Elementary Statistics", 2nd edition, Pearson Education 2016. Updated July 3, 2012, Nov. 22, 2013 and Sept. 16, 2015.