Hypothesis Testing: Independent Samples t Test (Sig 2-tail)

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Goal(s): Increased experience with the single sample t test.  Gain expertise with how to interpret the "Sig. (2-tailed)," depending upon whether it is a one-tail or two-tail hypothesis test.  Notice the possibility of taking sample size into consideration, such that for a sample size of 30 or more, a Z test might be used.  Recognize that if the result is considered "statistically significant," then the null hypothesis is rejected.  Become familiar with interpreting statistical results as they might be produced by a software program (e.g., SPSS).

How: For each scenario presented, take into consideration whether it is a one-tail or two-tail hypothesis test.  Evaluate the "Sig. (2-tailed)" result, and decide whether to reject the null hypothesis.  Make 30 quick decisions, with immediate feedback.

Site: P2L.io