Significant difference between each two different groups of data was examined using the Student's t test.
This difference is not significant and may in part be attributable to the two different groups of participants.
There do seem to be two different groups of hypochondriacs.
First, she loaded these human microbial communities into two different groups of germ-free rodents.
Those Social Security payments aren't the only sums being promised to two different groups of people.
But one trillion promised to two different groups of people doesn't add up unless you're using what kind of math?
And two different groups of opponents are stirring.The first is a dissident coalition of conservative Peronists.
Equally problematic, two different groups of children were used for the overlapping charts covering children from birth to 36 months and from 2 years to 18 years.
And the key to understanding that plan will be remembering that there are two different groups of homeowners who are at risk of foreclosure.
"I don't see this as two different groups of people," said Mr. Cronin, who for 17 years was the Hudson's "riverkeeper," a private pollution watchdog.
In 1992, when researchers began studying the fish, they discovered that the original stock appeared to have evolved into two different groups of salmon.
