Question

Mary wants to know if training with her program will improve runners’ times in the mile. She compares 5 runners whom she trains with 5 runners that receive standard instruction.

Improvement in time with Mary’s method in decrease in seconds	Improvement in time without Mary’s method in decrease in seconds.
35	19
50	15
40	25
45	10
35	24

1. Present your data in graphical form. You pick the type of graph
2. Calculate the effect size (if appropriate) and interpret it.
3. Write the results in the correct APA style format.

Answer 1

• 

  

effect size = TS^2/ (TS^2 + df)

= 5.539 ^2 / (5.539 ^2 + 8)

= 0.7932

c)

We conducted 2-sample t-test to know if training with Mary program will improve runners’ times in the mile

we observed significant improvement in time with Maty's programe as t(8) = 5.539,p< 0.001

Mary's program (M = 41,sd = 6.52) is 0.79 sd above that of without Mary's program