A regression analysis involved 6 independent variables and 27 observations. The critical value of t for testing the significance of each of the independent variable's coefficients will have _____.
a. 27 degrees of freedom
b. 26 degrees of freedom
c. 21 degrees of freedom
d. 20 degrees of freedom
Question 2
Use of the Poisson probability distribution assumes that arrivals are not random.
Indicate whether the statement is true or false