Question: a. What is the linear model? b. Which two parameters define the population straight-line relationship? c. What sample statistics are used to estimate the three

a. What is the linear model?
b. Which two parameters define the population straight-line relationship?
c. What sample statistics are used to estimate the three population parameters α, β, and σ?
d. Is the slope of the least-squares line, computed from a sample of data, a parameter or a statistic? How do you know?

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