Olympic Winners Listed below are the winning times (in seconds) of men in the 100-meter dash for consecutive summer Olympic games. Assuming that these results are sample data randomly selected from the population of all past and future Olympic games, test the claim that the meantime is less than 10.5 sec.

Use a significance level of 0.05.

12.0, 10.4, 11.0, 10.5, 11.0, 10.2, 11.2, 10.0, 10.8, 9.95, 10.8, 10.14, 10.8, 10.06, 10.6, 10.25, 10.8, 9.99, 10.3, 9.92, 10.3, 9.96, 10.3

Critical Value, t (from Table A-3): Answer______________________

Sample mean, x¯ (to 2 decimal places): Answer sec.______________________

Sample Standard Deviation, s (to 3 decimal places) = Answer sec____________________