Two Sample t-test
data: psychologie and chemie
t = 4.655, df = 28, p-value = 3.561e-05
alternative hypothesis: true difference in means is greater than 0
95 percent confidence interval:
1.716205 Inf
sample estimates:
mean of x mean of y
17.11430 14.40972
Two Sample t-test
data: psychologie and physik
t = 3.3692, df = 28, p-value = 0.001106
alternative hypothesis: true difference in means is greater than 0
95 percent confidence interval:
1.069361 Inf
sample estimates:
mean of x mean of y
17.11430 14.95436