You are assigned to run a study comparing a new medication (xbar1 = 17.47, n1 = 19), an existing medication (xbar2 = 17.94, n=18), and a placebo (xbar3= 13.70, n3 = 20), with higher scores reflecting better outcomes. Use SSb=210.10 and SSw=133.90 and a following t-test to determine if the new medication outperforms the existing medication. O Reject the null hypothesis; the new drug and the existing drug are different. Reject the null hypothesis; the new drug and the existing drug are not different. O Fail to reject (retain) the null hypothesis; the new drug and the existing drug are not different. Fail to reject (retain) the null hypothesis; the new drug and the existing drug are different.

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