Answer:
The correct statement is
The null hypothesis is [tex]H_o : p = 0.18[/tex]
The alternative hypothesis is [tex]H_a : p > 0.18[/tex]
Step-by-step explanation:
From the question we are told that
The population proportion is p = 0.18
The sample size is n = 1240 airplane
The number of airplane is k = 310
Generally the sample proportion is
[tex]\^ p = \frac{k}{n}[/tex]
=> [tex]\^ p = \frac{310}{1240}[/tex]
=> [tex]\^ p =0.25[/tex]
The null hypothesis is [tex]H_o : p = 0.18[/tex]
The alternative hypothesis is [tex]H_a : p > 0.18[/tex]
