2.853333 ------------ dat[, "promote"]: ঢਐ͋Γ [1] 4.48 #tݕఆ > t.test(promote0$happy, promote1$happy) Welch Two Sample t-test data: promote0$happy and promote1$happy t = -2.2515, df = 6.6525, p-value = 0.06101 alternative hypothesis: true difference in means is not equal to 0 95 percent confidence interval: -3.35328611 0.09995278 sample estimates: mean of x mean of y 2.853333 4.480000 23
p.val...... 0.014697 Original number of observations.............. 20 Original number of treated obs............... 5 Matched number of observations............... 5 Matched number of observations (unweighted). 5 • ঢਐʹΑ͕ͬͯߴ·Δʢιʣ 25