This test is used to decide if the means of the same[br]objects under two different conditions are different. [br][br]Move the DataSet slider to select a new data set.[br][br]Move the Significance slider to select a new [br]significance level.

These problems were adapted from #13, 17, [br]19 and 23 on pages 517-520 of Michael [br]Sullivan, "Fundamentals of Statistics", 2nd [br]edition, Pearson Education, Inc. 2008.