You have to subtract 54.39 - 36.245 = to 18.145
Answer:
there is no graph. can you edit the question?
Answer:
Sample size should be atleast 55320
Step-by-step explanation:
Given that a group of statistics students decided to conduct a survey at their university to find the average (mean) amount of time students spent studying per week.
population standard deviation 
Std error = 
Margin of error for 95%
= 
Since sample size is number of items it cannot be indecimal.
So we can round off to the next high integer on a safer side.