The answer is 4 like i sed last time stop making conversation nd get to work
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Answer: the answer is in the attachment.
Answer:
The correct statement is
The null hypothesis is 
The alternative hypothesis is 
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

=> 
=> 
The null hypothesis is 
The alternative hypothesis is 
X+5=2x-7
x=12
y=12+5
y=17
(12, 17)