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 
Answer:C and D
Step-by-step explanation: Hope this helps
Answer: $62
Step-by-step explanation:
From the question, we are informed that someone earned $204 from a job last week and has two relatives with birthdays coming up and wants to
spend the same amount on each of them but still wants to have $80 left.
To calculate the amount of gift spent on each, we have to deduct $80 from $204 firstly. This will be:
= $204 - $80
= $124
This means that the person will spend $124 on both of them, then we divide $124 by 2. This will be:
= $124/2
= $62
The amount spent on each gift will be $62.