Estadistica

UNIVERSIDAD POPULAR DE ANALCO

PSICOLOGIA II

MATERIA: Estadística II

Encuesta a Alumnos de Enfermería de la Universidad Popular de Analco

PROFESOR: José Gerardo Corral Chávez
ALUMNAS:Miriam Janeth Martínez Núñez
Mariela López
Dania
Fecha de Entrega
29 de Marzo del 2012

ENFERMERIA 4 SEMESTRE EDAD
19, 22,23, 24.EDAD | FRECUENCIA | F.A | F.R | F.R.A |
19 | 1 | 1 | .2 | .2 |
20 | 0 | 1 | 0 | .2 |
21 | 0 | 1 | 0 | .2 |
22 | 2 | 3 | .4 | .6 |
23 | 1 | 4 | .2 | .8 |
24 | 1 | 5 | .2 | 1 |

MEDIAARITMETICA
19, 22,23, 24

Ẋ=19(1)+22(2)+23(1)+24(1)
5
Ẋ=19+44+23+24
5
Ẋ=22

MEDIANA
5+1/2=3 =22+23/2=22.5

MODA=22.5

RANGO
24-19=5
MEDIA GEOMETRICA
G=n √ x1x2x3x4 5√(19)(22)(23)(24)= 5 √230736

VARIANZA
S2= [∑ (x, Ẋ)2 /n-1] x=22 S2= (19-22)2+ (22-22)2+ (23-22)2+ (24-22)2 /5-1=
S2=465+462+461+460/4=1848/4=462

DIVISIÓN ESTÁNDAR
S=√ s2
S= √462s=21.49

COEFICIENTE DE VARIABILIDAD O PERSON
Cv=21·49/22[100] cv=97.68

CUARTILES 19, 22, 23,24
Q1=19
Q2=22.5 22+23=22.5
Q3=24

PERCENTILESP35=22+35(5)-1/100/2·1=P35=22+175-1/100/2·1=22+1.75-1/2·1=22+.75/2·1=
P35=22+.375
P35=22.375
SESGO
AK=3(Ẋ-Me)/S
AK=3(22-22.5)/21.49=3(-0.5)/21.49=-1.5/21.49
AK=-0.069

CURTOSIS
KU=P75-P25/2(P90-P10)=
P75=Q3=24
P25=Q1=19P90=27.5
P10=22.5
PK=-0.5
P10=19+10(5)-0/100/1·1=19+50-0/100/1·1=22+.5-0/1·1=22+.5/1·1=22+.5=22.5

P90=24+90(5)-1/100/1·1=24+450-1/100/1·1=24+4.5-1/1·1=24+3.5/1·1=24+3.5=27.5

PK=24-19/2(22.5-27.5)=5/2(-5) =5/-10= -0.5

























Alumnos de Enfermería 6to Semestre
Edad:
21,22,32,21,22,21,22,23,26,23,20,23,20,23,
Edad |Frecuencia | F.A | F.R | FRA |
20 | 3 | 3 | 0.21 | 0.21 |
21 | 3 | 6 | 0.21 | 0.42 |
22 | 2 | 8 | 0.14 | 0.56 |
23 | 4 | 12 | 0.28 | 0.84 |
24 | 0 | 12 | 0 | 0.84 |
25 | 0 | 12 | 0 | 0.84 |...