# get the data into the software
Input =(
  "group no_malonate malonate
  a 0.026 0.026
  b 0.052 0.047
  c 0.045 0.005
  d 0.09 0.088
  e 0.012 0.02
  f 0.084 0.087
  g 0.006 0.007
  h 0.078 0.074
  i 0.016 0.015
  j 0.005 0.001
  k 0.12 0.08
  l 0.055 0.035
  m 0.055 0.035
  n 0.02 0.018
  ")

# turn the text into an R table
Data = read.table(textConnection(Input),header=TRUE)

# do the paired t-test
t.test(Data$no_malonate, Data$malonate,
       paired=TRUE,
       conf.level=0.95)