Internet tax: In 2013, a consulting company asked 1043 U.S. adults whether they believed that people should pay sales tax on items purchased over the Internet. Of these, 407 said they supported such a tax. Does the survey provide convincing evidence that the percentage of U.S. adults who favor an Internet sales tax differs from 40%? Use the a = 0.05 level of significance and the P-value method and Excel.