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. Test the claim using a 10% level of significance.

See Excel for Data.

adult vacation data.xlsx

The hypotheses for this problem are:

H0: = 23

H1: 23

Find the p-value. Round answer to 4 decimal places. p-value =

29 23 22 24 25 23 24 28 27 20 24 27 28 25 21 25 20 25 22 25 24 19 27 21 21 28 24 22