I need the picture to fully answer your question
dude.
A) the null hypothesis is incorrectly accepted when it is false
I think you should re-check the question because you might have made a typo.
Answer:
volume = 684π m³ or 2148.85 m³
Step-by-step explanation:
volume = (π6² x 11) + (4/3π6³) = 396π + 288π = 684π m³ or 2148.85 m³