# 6.2.3
ash=c(10.0,8.9,9.1,11.7,7.9)

# 6.3.3
weights=c(29.6,21.5,28.0,34.6,44.9)

# 6.3.5
gent=c(33,26,34,31,23,25)

# 6.3.10
diff=c(20,18,28,0,7,34,16,-5,8,4)

# 6.6.8
saladbowl=c(3.06,2.78,2.87,3.52,3.81,3.60,3.30,2.77,3.62)
bibb=c(1.31,1.17,1.72,1.20,1.55,1.53)

# 6.6.9
control=c(30,36,66,21,63,38,35,45)
soap=c(76,27,16,30,26,46,6)

# 6.7.11
caffeine=c(28,11,-3,14,-2,-4,18,2,2)
decaf=c(26,1,0,-4,-4,14,16,8,0,18,-10)

# 6.7.13
red=  c( 8.4, 8.4,10.0, 8.8, 7.1, 9.4, 8.8, 4.3, 9.0, 8.4,
         7.1, 9.6, 9.3, 8.6, 6.1, 8.4,10.4)
green=c( 8.6, 5.9, 4.6, 9.1, 9.8,10.1, 6.0,10.4,10.8, 9.6,
        10.5, 9.0, 8.6,10.5, 9.9,11.1, 5.5, 8.2, 8.3,10.0,
         8.7, 9.8, 9.5,11.0, 8.0)