State whether the following statements are True or False.

1. The SSR indicates how much of the total variability in the dependent variable is explained by the regression model.

2. When we want to use one variable to predict another and use the equation: y = a + bx, we use the technique known as multiple regression.

3. The goal of most waiting line problems is to identify the service level that minimizes service cost.

4. A bank with a single queue to move customers to several tellers is an example of a single-channel system.

5. A marketing research linear programming model can help a researcher structure the least expensive, statistically meaningful sample.

6. In a linear program, the constraints must be linear, but the objective function may be nonlinear.