A Regression Model Relating a Dependent Variable, Y, with One

question 40

Short Answer

A regression model relating a dependent variable, y, with one independent variable, x₁, resulted in an SSE of 400. Another regression model with the same dependent variable, y, and two independent variables, x₁ (used in the first model) and x₂ (added in the second model), resulted in an SSE of 320. At α = .05, determine if x₂ contributed significantly to the model. The sample size for both models was 20.

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Definitions:

Meiosis

A type of cell division that reduces the chromosome number by half, resulting in the production of four genetically distinct haploid gametes.

Meiosis

Meiosis is a type of cell division that reduces the chromosome number by half, resulting in four daughter cells, each with a unique set of chromosomes; it is essential for sexual reproduction.

Zygote

The initial cell formed when a sperm cell fertilizes an egg cell, representing the earliest stage of development in many organisms.

Chromosome Number

The total number of chromosomes present in the cell of an organism, which is characteristic of each species.