Question 1185131
Assuming randomness and independence,
p hat=49/71=0.690
Ho: p >0.690
Ha: p < = 0.690
alpha=0.05 p{reject Ho|Ho true}
test stat is a z
reject for z> 1.645
z=(0.690-0.689)/sqrt (0.689*0.311/71)
=0.001/0.0549=+0.018
fail to reject Ho, insufficient evidence to support the claim.
p-value is 0.493