[[1]]
datos3[, "poblaciones"]: Espaņa

	Shapiro-Wilk normality test

data:  dd[x, ] 
W = 0.9676, p-value = 0.7042

------------------------------------------------------------ 
datos3[, "poblaciones"]: Italia

	Shapiro-Wilk normality test

data:  dd[x, ] 
W = 0.9799, p-value = 0.9333


[[2]]

	classical Levene's test based on the absolute deviations from the mean
	( none not applied because the location is not set to median )

data:  datos3$valores 
Test Statistic = 0.0295, p-value = 0.8645


[[3]]

	modified robust Brown-Forsythe Levene-type test based on the absolute
	deviations from the median

data:  datos3$valores 
Test Statistic = 0.0112, p-value = 0.9164


[[4]]
                                 Espaņa              Italia 
            "Sesgo" "0.346732020676607" "0.241321686507485" 

[[5]]
                                   Espaņa               Italia 
          "Curtosis" "-0.546546454680671" "-0.543244470678692" 

[[6]]

	Welch Two Sample t-test

data:  datos3$valores by datos3$poblaciones 
t = 0.4759, df = 37.962, p-value = 0.6369
alternative hypothesis: true difference in means is not equal to 0 
95 percent confidence interval:
 -0.6344797  1.0244797 
sample estimates:
mean in group Espaņa mean in group Italia 
              12.935               12.740 


