The accompanying data table lists measured amounts of chest compression (mm) from car crash tests. Also shown are SPSS results from analysis of variance. Assume that we plan to use a 0.05 significance level to test the claim that the different car wash sizes have the same mean amount of chest compression.

Small 29 31 35 33 26 32 21 26 25 34 26 44

Midsize 32 28 26 23 25 26 19 29 26 20 22 22

Large 27 32 39 27 31 26 34 30 34 26 24 31

SUV 24 31 31 25 30 29 22 33 34 35 29 26

CHEST

Sum of Squares df Mean Square F Sig

Between Groups 223.750 3 74.583 3.815 .016

Within Groups 860.167 44 19.549

Total 1083.917 47

What is the value of the test statistic?