Question 1159077
Ho: the proportion is 0.70
Ha: it is not 0.70. The wording does not give any hint as to whether you think it is greater than or less than 0.70
alpha=0.10 p{reject Ho|Ho true}
test stat is a z
reject if |z|>1.645
test is a 1 sample proportion
p hat is 0.711
z=(phat -p)/sqrt(p*(1-p)/n)
=0.011/sqrt(0.71*0.29/225) sqrt term=0.0303
z=0.36
fail to reject Ho. There is insufficient evidence to reject the claim that the true proportion is 70%
p-value is 0.72