8.1 A multi-centre study to compare two anaesthetic agents (A and B) in patients undergoing short surgical procedures was reported by Whitehead (2002, Section 3.6, pp. 49–55).

The response variable considered was the recovery time in minutes, transformed to logarithms.

The results are presented in Table 8.6. (Data reproduced by kind permission of JohnWiley & Sons, Ltd.) The individual-patient data from these studies are not available, but simulated data have been produced that give the values in Table 8.6, and the first and last few lines of this data set are presented in Table 8.7: the full data set is held in the file

‘anaesthesia indiv patient.xlsx’ on this book’s website (see Preface).