Last year, a survey was conducted to determine the degree of support for the Mayor of New Orleans.Of a random sample of 1,242 voters in the New Orleans area, 54% indicated that they would vote for the incumbent. This month,James Carville took a random sample of 1,218 voters in the same area and found that only 42% of them support the mayor.Can we infer that the mayor's popularity has decreased by more than 10% since the last year?