A sports psychologist is interested in the relationship between

height and reaction time in atheletes. He divides his clients

into 2 groups: Those who are taller than 6' (the 'tall group')

and those who are 6' or less (the 'short group'). Then he

administers a reaction time test to both groups and compares

the results.

The sports psychologist chooses a t-test to determine if there is

a statistically significant difference in reaction time between

tall and short atheletes. He sets alpha at .05. He calculates the

value of 't' and dtermines that the associated p-value is .004.

Which of the following is the MOST appropriate conclusion?

a. There is a statistically significant difference in reaction

time between tall and short atheletes.

b. There is no statistically significant difference in reaction

time between tall and short atheletes.

c. Marathon runners have smaller reaction times than tall

atheletes.

d. Marathon runners have higher reaction times than short

atheletes.

e. none of the above