Answer
a. $\hat p=0.5, \hat q=0.5$
b. $\hat p=0.45, \hat q=0.55$
c. $\hat p=0.46, \hat q=0.54$
d. $\hat p=0.25, \hat q=0.75$
e. $\hat p=0.42, \hat q=0.58$
Work Step by Step
a. $\hat p=\frac{X}{n}=\frac{40}{80}=0.5, \hat q=1-p=0.5$
b. $\hat p=\frac{X}{n}=\frac{90}{200}=0.45, \hat q=1-p=0.55$
c. $\hat p=\frac{X}{n}=\frac{60}{130}=0.46, \hat q=1-p=0.54$
d. $\hat p=0.25, \hat q=1-p=0.75$
e. $\hat p=0.42, \hat q=1-p=0.58$
