Test to see if the reaction time is faster for the dominant hand using a 5% level of significance. The hypotheses are:

H₀ : _D = 0

H1 : _D > 0

	Non-Dominant	Dominant
Mean	63.33	Mean
Variance	218.9643158	Variance
Observations	20	20
Pearson Correlation	0.9067
Hypothesized Mean Difference	0
df	19
t Stat	4.7951
P(T<=t) one-tail	0.0001
t Critical one-tail	1.7291
P(T<=t) two-tail	0.0001
t Critical two-tail	2.0930