1) a--1/2 b--1/2
2) 1/2
3) 77.8% or unreduced as...
1-(39/52*38/51*37/50*36/49*35/48)
4) a--independent b--mutually exclusive
5) a--no b--no c--yes
6) -0.1 to 0.3 (2pts.), w/out correction...0.0 to 0.2 (give one point)
7) a--Manni b--Manni c--Lola
8) a-- negative $25 b--approx. $13 c--2.8% or 2.5% (depending on the "breakeven" used--full credit for both)
9) a--no b--no c--no
10)a--false b--$1081.50 to $1118.50 (1 pt for a 95% CI or 1077.5 to 1122.5) c--False
11) a--1.3% b--19.8% to 24.2% (1 pt for a 95% CI, or, 19.4% to 24.6%)