CK-12 Foundation
Ck 12: Algebra Ii: 6.6 the T Test
Learn about a statistical test that is used to compare the means of two groups, the T Test.
CK-12 Foundation
Ck 12: Algebra Ii: 6.5 Confidence Intervals
Explore the idea of a confidence interval where it is easier to predict that an unknown value will lie somewhere within a wide range, than to predict it will occur within a narrow range.