8. (i) When testing H : P 5 Po against K: P > Po by means of the test corresponding to (11), determine the sample size required to obtain power fJ against P = PI' a = .05, fJ = .9 for the cases Po = .1, PI = .15, .20,.25; Po = .05. PI = .10, .15•.20•.25; Po = .01. PI = .02•.05,.10, .15, .20. (ii) Compare this with the sample size required if the inspection is by attributes and the test is based on the total number of defectives.