A hotel chain wants to know if their customers are more satisfied with their service than the national average. The national average hotel satisfaction score is 87%. A survey of this hotel chains customers found that 108 out of 115 were satisfied with their service. Is this statistically significant evidence that this hotel chains customers are more satisfied with their service? Use an = .05

Correct option: fourth one -> 254 cubic inches.

Step-by-step explanation:

The volume of a cylinder is given by the equation:

To calculate the internal volume of the pipe, we should use its internal radius.

The external radius of the pipe is half of the diameter, and the internal radius is the external radius minus the thickness of the pipe, so we have:

Then, using the internal radius in the volume equation, we have that:

So the correct option is the fourth one: Volume is approximately 254 cubic inches.