Are the scores significantly different, given the variability in individual scores? Do an analysis of variance. If it produces significant results, the choice may be clear; otherwise, the bowlers must return to the alley for more games. $($Suggestion: Use the software provided with the book. First do the one$-$factor tutorial that comes with the program. It's keyed to the data in Table $2\mathrm{.}5.$ See the end of the book for software instructions and details on the tutorial files.$)$