Solution to Exercise 7.40.

  More table lookups. Easy if not exciting. Table A.7, p. 727.

(a) $\chi^2_{.1,15}$ = 22.307

(b) $\chi^2_{.1,25}$ = 34.381

(c) $\chi^2_{.01,25}$ = 44.313

(d) $\chi^2_{.005,25}$ = 46.925

(e) $\chi^2_{.99,25}$ = 11.523

(f) $\chi^2_{.995,25}$ = 10.519