Question: 1. The time students entered the classroom of OM 390, Introductory Operations Management, was recorded by the professor in the table below for five class meetings. Create and analyze a histogram of this data. Please note that a negative time means that the student arrived after the start of class.
2. The injection-molded caps of disposable ballpoint pens must meet tight specifications to fit snugly on the pen. One specification that is tracked is the cap's weight, which should be 0.2 g. A sample of 100 pens is taken each day. Make a histogram of the data for one day's production, given the data in the table below.
3. The specifications for the diameter of an injection-molded part are 25 mm x .5 mm. The actual average and standard deviation from 250 parts sampled is 25.01 and 0.1 mm, respectively. What are the Cp and Cpk ?
4. The specification for the weight of a box of cereal is 16.2 oz x .1 oz. The actual mean and standard deviation from a sample of 200 boxes is 16.1 oz and 0.05 oz, respectively. What are the Cp and Cpk ?