Question 1078064
given the assumptions of normality and random sampling,etc.
test statistic is strictly speaking a t, but with df=1799, a z may be used.
if a one way test, the critical value of z is z>1.28
z=(529-522)/113/sqrt(1800)=7*sqrt(1800)/113
2.628
This is greater than the critical value so reject Ho with p-value (calculator) or 0.004 or from table p<0.005.