Scatter Diagrams, Regression Lines, Significant Correlation

Move the "data" slider to select a new data set. Move the "size" slider to select a new sample size. Move the "seed" slider to select a new sample. Move the "confidence" slider to select a new confidence level. Check the boxes to see the answers to each problem.
There will be problems similar to these on the Final Exam. This applet is developed from problems #19, #20, #21, #22, #23, #24, #25, #26 on pages 597-98 of Navidi & Monk, "Elementary Statistics", 2nd edition, McGraw-Hill Education 2016. This applet was uploaded Nov. 29, 2013 and updated Dec. 2, 2013, Jan. 16, 2014 and Sept. 22, 2015.