Question 1180231
Ho: mean 1 < mean 2
Ha: mean 1 >= mean2
test is a t df=24
t=(xbar-mean)/s/sqrt(n)
critical value is t < -1.711
calculation is t=(24-30)/2.9/sqrt(25)=-30/2.9
the t-value is -10.34
highly significant that there is a difference
p-value <<0.0001