Published reports of statistical analyses are often very ter

Published reports of statistical analyses are often very terse. A knowledge of basic statistics helps you decode what you read. In a study of the presence of whelks along the Pacific coast, investigators put down a frame that covers 0.25 square meter and counted the whelks on the sea bottom inside the frame. They did this at 10 locations off California and 5 locations off Oregon. The report says that whelk densities \"were twice as high in Oregon as in California (mean

Solution

you decode what you read. In a study of the presence of whelks along the Pacific coast, investigators put down a frame that covers 0.25 square meter and counted the whelks on the sea bottom inside the frame. They did this at 10 locations off California and 5 locations off Oregon. The report says that whelk densities \"were twice as high in Oregon as in California (mean