Question 20 (1 point) The average age of an adult's first vacation without a parent or guardian was reported to be 23 years old. A travel agent believes that the average age is different from reported. They sample 28 adults and they asked their age in years when they first vacationed as an adult without a parent or guardian, data shown below. See Excel for Data. adult vacation data.xlsx Test the claim using a 10% level of significance. The hypotheses for this problem are: Ho: = 23 H: 23 Find the test statistic. Round answer to 4 decimal places. test statistic t = | A