1. Straight enough to ft a line
2. Not straight enough to ft a line
3. Similar variances
4. Not similar variances
5. Nearly normal
6. Not nearly normal
(a)

(b)

(c)

(d)

(e)

(f)

900 800 700 600 500 400 300 200 100 0 100 200 5 15 25321 2 3 Count Normal Quentile Plot 80 60 20% -6 -80 250 300 350 400 450 500 550 30 . 2001- 100 0 200 300 400 00 600 X. 100 80 60 40 20 0 -20 -40 -60 80 5 10 15 20-3 23 Count Normal Quantile Piot 6,000 5,000 4,000 3,000 2,000 1000,s 0 -80-60-40-20 O 20 40 60 80 40,000 30,000 20,000 10,000F. 0 0,000 -20,000 -30,000 40,000 250 300 350 400 450 500 550