Question

Please show all work and place your final answers on the lines. No work means no credit.(please show work)

3. A trainer claims that he will increase your bench press strength by 25 pounds.  A random sample of 51 people that have worked with the trainer showed a mean bench press strength increase of 23 pounds with a standard deviation of 5 pounds.  Using a significance level of 5%, can you conclude that the trainer’s claim is valid?

Null Hypothesis: ____________________            Your Work:

Alternative Hypothesis: ____________________

Critical Value: ____________________

Test Statistic: ____________________

Your Decision: ____________________

Answer 1