16.04.2013 Views

5. Test per proporzioni: confronto tra campioni e ... - statistica.it

5. Test per proporzioni: confronto tra campioni e ... - statistica.it

5. Test per proporzioni: confronto tra campioni e ... - statistica.it

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

50<br />

45<br />

40<br />

35<br />

30<br />

25<br />

20<br />

15<br />

10<br />

5<br />

0<br />

X<br />

0<br />

1<br />

2<br />

3<br />

4<br />

Osservati<br />

Attesi<br />

6. TEST PER PROPORZIONI<br />

4) Calcolo delle frequenze attese π i . O<br />

O i<br />

5<br />

24<br />

44<br />

19<br />

11<br />

π i<br />

(1/2) 4 =0.0625<br />

4 . (1/2) 1. (1/2) 3 = 0.25<br />

6 . (1/2) 2. (1/2) 2 = 0.375<br />

4 . (1/2) 3. (1/2) 1 = 0.25<br />

(1/2) 4. (1/2) 0 = 0.0625<br />

π i .O<br />

0.0625 . 103=6.44<br />

0. 25 . 103=2<strong>5.</strong>75<br />

0.375 . 103=38.62<br />

0.25 . 103=2<strong>5.</strong>75<br />

0.0625 . 103=6.44<br />

1 2 3 4 5<br />

MARTA BLANGIARDO – TEST PER PROPORZION - 6.49

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!