Find the sample size needed to give margin of error to estimate a proportion within equal to 2% with 99% confidence. with 95% confidence . with 90% confidence. ( Assuming that the prior knowledge about the population proportion p=0.40.)round your answer up to the nearest integer.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   CONFIDENCE OF 99%                                                                                                                                                                                                                                                                                                                                                                                                                  CONFIDENCE OF 95%                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  CONFIDENCE OF 90%

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