Truthfulness is one of the guiding principles of the Mixed Ethical Framework

The regression equation for a categorical variable with four categories would be modeled as ________

A) ? i = a + b1 D1 + b2 D2 + b3D3 B) ? i = a + b1 D1 + b2 D2 + b3D3 + b4D4 C) ? = b1 D1 + b2 D2 + b3D3 D) ? = b1 D1 + b2 D2 + b3D3 + b4D4

In ________, cost does not enter directly into the calculation of sample size

A) stratified sampling B) simple random sampling C) cluster sampling D) A and C are correct