psc41-10-23-07

psc41-10-23-07 - ANNOUNCEMENTS D A 2 - D u e 1 0 /2 5 /0 7...

Info iconThis preview shows pages 1–6. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: ANNOUNCEMENTS D A 2 - D u e 1 0 /2 5 /0 7 D A 2 - D u e 1 0 /2 5 /0 7 1 C h . 5 S t a t is t ic a l A n a ly s is Group A (Trained) 98 93 90 89 87 87 84 81 78 71 66 Group B (Nontrained) 94 88 82 77 75 74 72 72 67 61 56 • In d iv id u a l D iffe r e n c e s • D e s c r ip tiv e S ta tis tic s • In fe r e n tia l S ta tis tic s O r g a n iz in g D a t a O r g a n iz in g D a t a Frequency Distribution: Any representation of the r e la tio n b e tw e e n a s e t o f m u tu a lly e x c lu s iv e a n d e x h a u s tiv e m e a s u r e m e n t c la s s e s a n d th e fr e q u e n c y o f e a c h . M a le s F re q u e n c y P e rc e n ta g e {(f/N )* 1 0 0 } 17 F e m a le s 7 T o ta l 24 71 29 100 2 O r g a n iz in g D a t a Cross-tabulation: Categorize participants b a s e d o n m o r e th a n o n e v a r ia b le a t th e s a m e tim e . M a le s D e m o c ra ts R e p u b lic a n s O th e r T o ta ls 4 6 7 17 F e m a le s 5 1 1 7 T o ta l 9 7 8 24 O r g a n iz in g D a t a F r e q u e n c y H is to g r a m F r e q u e n c y P o ly g o n O r g a n iz in g D a t a C o m p a r in g T w o D is tr ib u tio n s 3 N o r m a l D is t r ib u t io n Skewness P o s itiv e ly S k e w e d N e g a tiv e ly S k e w e d D e s c r ip t iv e S t a t is t ic s • M e a s u r e s o f C e n tr a l T e n d e n c y – T h e p o in t o r v a lu e th a t is c o n s id e r e d ty p ic a l o r th a t w o u ld d e s c r ib e th e d is tr ib u tio n . • M ode: – T h e m o s t fr e q u e n tly o c c u r r in g s c o r e in a d is tr ib u tio n . 4 B im o d a l M ode D e s c r ip t iv e S t a t is t ic s • M e a s u r e s o f C e n tr a l T e n d e n c y • M e d ia n : – Is a m e a s u r e o f th e m id d le o f th e distribution and is the score at the 50th p e r c e n tile . • M ean: – T h e a r ith m e tic a v e r a g e . 5 6 ...
View Full Document

This note was uploaded on 09/13/2010 for the course PSC 78918 taught by Professor Dawnteearly during the Fall '09 term at UC Davis.

Page1 / 6

psc41-10-23-07 - ANNOUNCEMENTS D A 2 - D u e 1 0 /2 5 /0 7...

This preview shows document pages 1 - 6. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online