Pls, do an excel file!!!!!

An Oregon wine association wants to determine the proportion of West Coast consumers who would spend at least $30 on Willamette Valley pinot noir at a 99% confidence level. If they wish to have an error of no more than 4%, how large a sample must they take Based ? on surveys of cruise passengers who have visited the wineries, the association estimates that the proportion is around 0.12

Association, frequently conduct surveys to identify characteristics of their membership. If this organiza-tion conducted a survey to identify characteristics of their membership. If this organiza-tion conducted a survey to estimate the annual per capita consumption of milk and wanted to be 95% confident that the estimate was no more than 0.75 gal-lon away from the actual average, what sample size is needed? Past data have indicated that the standard deviation of consumption is approximately 6 gallons.