Question 1082995
Ho: mean is 6
Ha:mean isn't 6
alpha=0.05 P{reject Ho|Ho true}
test statistic is a t df=99, 0.975 with critical value |t|>1.964
t=(6.1-6.0)/0.2/sqrt(100)
=0.1*sqrt(100)/0.2=1/.2=5
reject Ho, p-value is <0.0001
the process is out of control.