An operations research analyst has developed a simulation model of an assembly line process. He wants to compare two different operating models. Because of the different configurations he is unable to use common random numbers, so each simulation sees a different product mix. The goal is to find which pattern creates the shortest average cycle time per part. What type of hypothesis testing model should she use to perform her analysis?

Independent Sample - Unknown Equal Variance

Dependent Sample

Independent Sample - Known Variance

Independent Sample-Unknown UnequalVariance