An article in the journal of strain analysis (vol.18, no.2, 1983) compares several procedures for predicting the shear strength for steel plate girders. data for nine girders in the form of the ratio of predicted to observed load for two of these procedures, the karlsruhe and lehigh methods, are given as follows:

1. how much money did selfridge spend on advertising before the store’s opening? 2. explain what shopping was like in london during the early 1900s. how does this differ from the modern shopping experience? 3. what was the role of a floorwalker in 1900s london? 4. what inspired selfridge to ensure that customers in his store could browse at their leisure? do you need the links to the video?