1. A systems analyst needs to summarize 1,000,000 documents stored in the repository to assess the effectiveness of the information system. The documents describe end-user usage and (dis)satisfaction. The analyst wants to review the least number possible and avoid, if possible, sampling errors. The population variance for usage is 900 hours hours.

d. If the analyst believes one-third of the documents indicate a variation from user satisfaction, how many documents should the analyst select to estimate the percentage of dis-satisfied users at the 95% certainty level if the acceptable error is 0.5 . e. If the analyst knows one-third of the documents indicate a variation from user satisfaction, how many documents should the analyst select to estimate the percentage of dis-satisfied users at the 95% certainty level if the acceptable error is 0.01