Answer:
its impossible without getting a negative number
Step-by-step explanation:
Answer:
The margin of error (E) 
Step-by-step explanation:
Given,
mean 
standard deviation 
sample size 

Critical value


Critical value 


The margin of error (E) 


Hence, The margin of error (E) 
Complete question is attached in below.
Answer:
230
Step-by-step explanation:
the angle 115 is half of that arc