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Using the Studentized residuals tᵢ to determine influential points in a multiple regression model with k independent variable and n observations and letting tn₋k₋₂ denote the upper critical value of a two-tail t test with a 0.10 level of significance, Xᵢ is an influential point if
Middle Childhood
A developmental stage that typically includes children from about 6 to 12 years old, characterized by notable growth in cognitive and social abilities.
National Economy
The system of economic activities and the total wealth produced within a nation, including the production, consumption, and distribution of goods and services.
International Test
An assessment conducted across various countries aimed at evaluating and comparing the capabilities, knowledge, or skills of participants on a global scale.
Educational Achievement
The accomplishment or attainment of academic goals, typically measured through grades, diplomas, and degrees.
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