Let's reviewinventory sampling data companyA collected after the implementation of cardboard dividers. Confidence intervals have been constructedto estimate the true inventory defect rate for each of the three different storage types at the warehouse. One of these storage types uses the cardboard divider.

Company Asampled 5,000 observations from each of the three different storage types and recorded "1" if there was a defect in the bin and "0" if there was not. The mean defect rate and standard deviation for each storagebin1,2 or 3, provided below. Based on your analysis and the information , which storage bin below 1,2 or 3 do you think uses the cardboard divider? Why? What is the true defect rate of the inventory separated by the cardboard dividers?