Using the Hat Matrix Elements Hi to Determine Influential Points $h _ { i } < 2 ( k + 1 ) / n$

question 184

Short Answer

Using the hat matrix elements hi to determine influential points in a multiple regression model with k independent variable and n observations, Xi is an influential point if a) $h _ { i } < 2 ( k + 1 ) / n$
b) $h _ { i } > 2 ( k + 1 ) / n$
c) $h _ { i } < n ( k + 1 ) / 2$
d) $h _ { i } > n ( k + 1 ) / 2$

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Definitions:

Presidential Election

The process by which the President of the United States is elected, typically held every four years through an Electoral College system.

Turnout

The percentage of eligible voters who cast a ballot in an election, often used as a measure of political engagement and the legitimacy of electoral outcomes.

People's (Populist) Party

A political party in the United States during the late 19th century that sought to represent the interests of agrarian populations and advocate for reform measures.

Northeast

A region in the United States, consisting of the New England and Mid-Atlantic states, known for its significant historical, cultural, and economic contributions to the country.