During a test, the scientist may try to prove or disprove just the null hypothesis or test both the null and the alternative hypothesis. If a hypothesis specifies a certain direction, it is called one-tailed hypothesis.
A mountain pass (also called a gap, saddle, or col) is a passage over a mountain range. They typically occur in valleys between mountain ridges, in low points along mountain watersheds or just the lowest point on a mountain ridge between two peaks. They can be relatively short in length (the width of a ridge) or they can be valleys many miles long. Mountain passes are often the location where roads and railways are built to get through the mountains. Many of them have become famous throughout history for their importance in trade and commerce.
The pass is widely considered one of the most scenic in Colorado, offering a panoramic view of the southern end of the Sawatch Range from the summit. Monarch Mountain Lodge is located about 5 miles from the summit of the pass. During the summer, an aerial tram from the parking lot at the summit carries visitors to the top of Monarch Ridge above the pass (at approximately 12,000 feet (3,700 m) above sea level), allowing a wider view of the surrounding peaks.