On each of the previous 50 days, 100 electronic devices of a certain type were randomly selected and subjected to a severe heat stress test. The total number of items that failed to pass the test was 590. (a) Determine control limits for a 3-sigma p chart. (Round your answers to four decimal places.) p = LCL = UCL = (b) The highest number of failed items in a given day was 24, and the lowest number was 5. Do either of these correspond to an out-of-control point? Explain. (Select all that apply.) The lowest point is between the limits and therefore in control. The lowest point exceeds the lower control limit and therefore generates an out-of-control signal. The highest point is between the limits and therefore in control. The highest point exceeds the upper control limit and therefore generates an out-of-control signal.