#!/opt/sw/bin/awk -F, --exec 

BEGIN{
    expnum=ARGV[1]
    measure=ARGV[2]
    ARGV[1]=ARGV[3]
    ARGC=2
}

$1==sprintf("Experiment %s", expnum) && /Mean/  && $3==measure {
    printf"%s %s %s %s\n",$3,$4,$6,$8 # Name,Start Time,Mean,Confidence Interval
}