Question 1175402
This is a paired t-test with df=7
Ho: d=0
Ha: d ne 0
alpha is 3.499 p{reject Ho|Ho true}
calculations
differences are 0,1,1,3,1,-1,1,2
mean is 1
sd is 1.20
t=(x bar-0)/s/sqrt(n)
=1*sqrt(8)/1.20
=2.35
fail to reject Ho at the 1% level. p-value is 0.050.
Insufficient evidence
Using the same driver eliminates differences in metabolism and reaction time, and is a far better technique here.