In a recent year, the better business bureau settled 75% of complaints they received. (source: usa today, march 2, 2009) you have been hired by the bureau to investigate complaints this year involving computer stores. you plan to select a random sample of complaints to estimate the proportion of complaints the bureau is able to settle. assume the population proportion of complaints settled for the computer stores is the 0.75, as mentioned above. suppose your sample size is 129. what is the probability that the sample proportion will be 5 or more percent below the population proportion?

You own a nonunion company with 93 nonexempt employees. all of these employ- ees pack books into boxes for shipment to customers throughout the united states. because of wide differences in performance, you have decided to try performance appraisal, something never done before. until now, you have given every worker the same size increase. now you want to measure performance and reward the best performers with bigger increases. without any further information, which of the five types of appraisal formats do you think would be most appropriate? justify your answer. do you anticipate any complaints, or other comments, from employees after you implement your new system?