poll published on Mon- day, October 20, 2016, found 390 of the registered voters surveyed favor Proposition 205, which would legalize marijuana for adults. The statewide telephone poll surveyed 779 registered voters between Oct. 10 and Oct. 15. (Sanchez, 2016) Find a 99% confidence interval for the proportion of Ari- zona's who supported legalizing marijuana for adults. 2. In November of 1997, Australians were asked if they thought unemploy- ment would increase. At that time 284 out of 631 said that they thought unemployment would increase ("Morgan gallup poll," 2013). Estimate the proportion of Australians in November 1997 who believed unemployment would increase using a 95% confidence interval? [ 3. According to the February 2008 Federal Trade Commission report on con- sumer fraud and identity theft, Arkansas had 1.601 complaints of identity theft out of 3,482 consumer complaints ("Consumer fraud and," 2008). Calculate a 90% confidence interval for the proportion of identity theft in Arkansas. acer