Uppgift 1

Kalle Palm (kalle.palm@gmail.com)

Tabell med info

d

##    group     rt
## 1      A 0.3200
## 2      A 0.2800
## 3      A 0.3530
## 4      A 0.5600
## 5      A 0.4000
## 6      A 0.3600
## 7      A 0.2990
## 8      A 0.6210
## 9      B 0.2700
## 10     B 0.3300
## 11     B 0.2940
## 12     B 0.3900
## 13     B 0.2910
## 14     B 0.3712
## 15     B 0.3750
## 16     B 0.3200
## 17     B 0.2860

Medelvärde och median

mean(rt ~ group, data = d)

##      A      B 
## 0.3991 0.3252

median(rt ~ group, data = d)

##      A      B 
## 0.3565 0.3200

Plot

xyplot(rt ~ group, data = d)