researchers are going to collect data from a sample of 100 penn state world campus students. they will call each student to ask how many hours they slept last night and they will ask each student for their gpa (scale of 0 to 4.0).

1. is this an observational or experimental research study? explain how you

The maximum distance (in nautical miles) that a radio transmitter signal can be sent is represented by the expression 1.23h√, where h is the height (in feet) above the transmitter. estimate the maximum distance x (in nautical miles) between the plane that is receiving the signal and the transmitter. round your answer to the nearest tenth.