A manufacturer of hand-held calculators receives large shipments of printed circuits from a supplier. It is too costly and time-consuming to inspect all incoming circuits, so when each shipment arrives, a sample is selected for inspection. Information from the sample is then used to test Ha: p = 0.05 versus Ha: p>0.05 where p is the true proportion of defective circuits in the shipment. If the null hypothesis is not rejected, the shipment is accepted and the circuits are used in production of calculators. If the null hypothesis is rejected, the entire shipment is returned to the supplier because of inferior quality. a) Define the Type 1 error in this context. b) Define the Type II error in this context. c) From the calculator manufacturer's point of view, which error is more serious and why? d) From the circuit supplier's point of view, which type of error is considered more serious and why?