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# MAS 201 Chapter 3 MAS 201

Luis Banza

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COURSE
PROF.
Luis Banza
TYPE
Class Notes
PAGES
2
WORDS
KARMA
25 ?

## 3

1 review
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This 2 page Class Notes was uploaded by an elite notetaker on Wednesday August 26, 2015. The Class Notes belongs to MAS 201 at University of Miami taught by Luis Banza in Summer 2015. Since its upload, it has received 52 views. For similar materials see Business Statistics in Business, management at University of Miami.

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Date Created: 08/26/15
Mean M u Population Mean 2 Sample Mean ZfiMi N n Mean is the sum of the frequency times the midpoint of each Midpoint is the middle of each group Variance Z r M if n 1 ZfiMiM N 2 02 Population Variance S 2 Sample Variance Variance is the sum of frequency times to midpoint minus the mean squared Standard Deviation D Population Standard Deviation 2 xi S Sample Standard Deviation 2 xi Normal Distribution The observations are distributed evenly A gt 59 Shfa MEAN MEDIAN MODE I Symmetr c NORMAL DISTRIBUTION l 39 gt The Right Skewed Distribution most of the observations fall in one section on the left A MEAN gt MEDIAN gt MODE RIGHT SKEWED DISTRIBUTION l I i gt The Left Skewed Distribution most of the observations fall in one section on the rig I m I MODE gt MEDIAN gt MEDIAN I LEFT SKEWED DISTRIBUTION l l l gt ExamQIe 1 Samglel It is based on a sample of 20 clients so gt n20 Frequency Distribution Table Audit Time of Clients Midpoint Frequency 10 14 4 f1 12 M1 15 19 8 f2 17 M2 20 24 5 f3 22 M3 25 29 2 f4 27 M4 30 34 1 f5 32 M5 Mean 2 f1M1f2M2f3M3f4M4f5M5 5c Sample Mean n 4x128x175 x222x271x 32 20 Z 19 Days Variance flMl 5C2quot39fz 425C2quot39f3W35C2f4 445C2fs 455c2 S 2 Sample Variance 1 n Z 412 192817 192522 192227 192132 192 20 1 570 2 a 19 30Days Standard Deviation S Sample Standard Deviation S 2 m 55 Days

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