Let X1 and X2 have independent distributions b(n1, p) and b(n2, p). Find the mgf of Y = X1 + X2. How is Y distributed?

Psych 2300: Psychology Research Methods 6/15/16 Chapter 3: Claims and Validities Tools for Interrogating Research Part 1: Variables Variable: anything that takes on multiple (at least 2) levels Independent variable: taking on multiple levels manipulated by experimenter: manipulated Dependent variable: taking on multiple levels affected by the independent variable;...