A study conducted several years ago reported that 21 percent of public accountants changed companies within 4 years. The American Institute of CPAs would like to update the study. They would like to estimate the population proportion of public accountants who changed companies within 4 years with a margin of error of 4% and a 98% level of confidence. (Round your z value to 3 decimals. Round up your answers to the next whole number.)
- To update this study, the files of how many public accountants should be studied?
- How many public accountants should be contacted if no previous estimates of the population proportion are available?
The way to approach this... View the full answer