Researchers are comparing the mean test scores of participants in three different groups. Sample data are summarized in the table below. Summary Statistics Standard Group Sample Size Mean Deviation Treatment A 54 89.478 11.247 Treatment B 55 90.698 12.187 Placebo 54 86.648 10.874 What statistical procedure should be used to compare the mean scores of these three groups? Two independent means t test Two independent proportions z test One-way analysis of variance (F test) One sample proportion z test One sample mean t test