1. x=3.03
2.x=0.5
3.x=4/3
4.x=2
5.x=10
        
             
        
        
        
Not enough information- the coupon will only be worth 24% after tax though.
        
                    
             
        
        
        
Answer:
The large sample n = 190.44≅190
The  large  sample would be required in order to estimate the fraction of people who black out at 6 or more Gs at the 85% confidence level with an error of at most 0.04 is n = 190.44
<u>Step-by-step explanation</u>:
Given  population proportion was estimated to be 0.3
p = 0.3
Given maximum of error E = 0.04
we know that maximum error 

The 85% confidence level 


now calculation , we get 
 √n=13.80
now squaring on both sides n = 190.44
large sample n = 190.44≅190
<u>Conclusion</u>:-
Hence The  large  sample would be required in order to estimate the fraction of people who black out at 6 or more Gs at the 85% confidence level with an error of at most 0.04 is n = 190.44