I am interested in determining if my revolutionary strength training program is effective. I randomly select 20 students from my SCM 200 class. I measure them before and after the program on their 1R.M for bench press and want to determine if the change in lbs is significantly greater after the program compared to before the program. Results were found to be 20lbs (mean change of after minus before). Standard deviation was 2.5. Can I make the claim that my program appears to be effective at increasing strength? Evaluate on  a TI 83 calculator

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