Jenny wants to investigate if the amount of shampoo in the bottle is actually the weight printed on the shampoo bottle. What would she need to do if she decided to use a systematic sampling method? Group of answer choices She should randomly select factories or distribution centers for the shampoo at different locations and use all of their products as samples She should number all the shampoo bottles produced everywhere and then use a randomization technique to randomly select a sample She should buy all the shampoo bottles at her nearest store and test them She should divide the population of all shampoos manufactured into even groups. She should then pick one shampoo bottle randomly, and then select every nth shampoo bottle for the entire population