

   FFaaiilluurreess ooff AAiirr--ccoonnddiittiioonniinngg EEqquuiippmmeenntt

   AArrgguummeennttss::

      hours: The time interval in hours between successive
             failures of the air-conditioning equipment

   SSUUMMMMAARRYY::

        Proschan (1963) reported on the times between failures
        of the air-conditioning equipment in 10 Boeing 720 air-
        craft. The `aircondit' data frame contains the inter-
        vals for the ninth aircraft while `aircondit7' contains
        those for the seventh aircraft.

        Both data frames have just one column.  Note that the
        data have been sorted into increasing order.

   DDAATTAA DDEESSCCRRIIPPTTIIOONN::

        The data frames contain the following column:

   SSOOUURRCCEE::

        The data were taken from

        Cox, D.R. and Snell, E.J. (1981) Applied Statistics:
        Principles and Examples. Chapman and Hall.

   OOTTHHEERR RREEFFEERREENNCCEESS::

        Davison, A.C. and Hinkley, D.V. (1997) Bootstrap Meth-
        ods and Their Application. Cambridge University Press.

        Proschan, F. (1963) Theoretical explanation of observed
        decreasing failure rate. Technometrics, 5, 375-383.

