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).
Add a little luxury to your Yosemite vacation when you reserve your stay at Yosemite View Lodge in El Portal, California. Yosemite National Park is in the Sierra Nevada Mountains, approximately 185 miles east of San Francisco and 360 miles north of Los Angeles. The closest town is Mariposa on CA 140, which is 30 miles west of Yosemite Valley. Watch Out for Road Closures. From November through May, the Tioga Road (which crosses the Sierra Nevada between US 395 and CA 120), is usually closed due to heavy snow. For current California highway conditions, call 800.427.7623 when inside California or Nevada, or 916.445.7623 when elsewhere.