So, exercise is always better than no exercise (20 > 10; 8 > -2) and dieting is always better than no dieting (20 > 8; 10 > -2) (the main effects establish this). But, dieting and exercise is particularly effective than either dieting or exercise alone (20 > 15; 20 > 14). Sometimes you can have no main effects but still have an interaction:
Attention JMT Hikers: On February 2, 2015, NPS began enforcing an exit quota for backpackers exiting Yosemite over Donahue Pass. For more information, please visit Wilderness Permits for John Muir Trail Hikers. Yosemite Wilderness Permit Reservations Wilderness permit reservations are available up to 24 weeks (168 days) in advance. View a table with the earliest dates for reservation requests. Reservations are not available one day in advance or on the day of your hike (see below for information about first-come, first-served permits).
If you're under the age of 18, most states require you to get a learner's permit and hold it for a minimum period of time (typically anywhere from 6 months to a year) before you can get a full license. You must be a minimum age to get a learner's permit â anywhere from 14 to 16 years old, depending on the state.