A research center conducted a national survey about teenage behavior: Teens were asked whether they had consumed a soft drink in the past week The following table shows the counts for three independent random samples from major cities_ Baltimore 727 177 904 Detroit L,232 431 1,663 San Diego 1,482 798 2,280 Total 3,441 1,406 4,847 Yes No Total b) Do the data provided convincing evidence wheter there is a difference among the three cities in the proportion of all teens who consumed a soft drink in the past week