Quality assurance officer is to collect samples from the products received by the method of sampling according to a formula. n + 1 when n refers to the number of containers received.
Quality assurance staff to collect samples of the products obtained by sampling the recipe n +1, where n represents the number of containers received.
Quality assurance staff to samples from the product obtained by the method of sampling according to the formula. n 1 when n mean the number of containers received.