A political campaign is considering sending a letter requesting donations to all of the tens of thousands of people on its mailing list. The campaign will only send the letter to everyone on the list if it is convinced that more than 4% of recipients will respond with donations. The campaign sends the letter to a random sample of 500 people on its list and receives donations in response from 24 recipients. At the 5% level of significance, does the campaign have convincing evidence that more than 4% of recipients on its entire mailing list will respond with donations?