5.1) The inspection results for an electric fan shows that the total number defective in a sample of 25 subgroups of 300 each is 138. The inspector inspected a total of 7 500 fans. Determine the trial control limits. (4) 5.2) A manufacturer of loudspeakers has decided that product 2% non-conforming will be accepted with a probability of 0.01. Determine the single sampling plans for c=1, 2, and 5.