Question 1120313
Ho: p=0.39
Ha: pNE 0.39
alpha=0.10
test statistic is one sample proportion z=phat-p divided by sqrt (p*(1-p)/n)
critical value is |p|>1.645
calculation is z=(0.444-0.39)/sqrt(0.44*0.56/90), exact square root is 4/9*5/9/90 which is 0.0524
z=0.0544/0.0524=1.04
Fail to reject Ho, and there is insufficient evidence to reject the population proportion of 0.39.