A simple random sample of 300 items is selected from a large shipment, and testing reveals that 4% of the sampled items are defective. The supplier claims that less than 2% of the items in the shipment are defective. In order to determine the creditability of the supplier's claim, answer the following questions. 50. What kind of hypothesis test is most appropriate? 51. Calculate the value of the test statistic. 52. Determine the critical value of the test statistics at 1% level of significance