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TRABAJO FINAL
ESTADISTICA 2
VENTAS DIARIAS POR TRIMESTRE
FABRICANTE


DATOS

106

104

103

102

105

96

104
94
104
110
101
98

93
109
96
110
101
105
104

109

102

99

94

98

100

98

93

93

94

96

106

95

104

104
104
106
110
94

100
94
97
103
108
104

103

102

100

101

108

108

97

107

104

93
FORMULA


n: 100



Nivel de confianza: 97%



Alfa: 3%



Alfa/2: 0,0150



Z0,0150: -2,18



Varianza: 0,25



Error de confianza: 10%

       n:

(-2,18) ˄2 x 0,25 x 100
(-2,18)˄2 x 0,25 + 99 x (0,10) ˄2

 =  54,54

͌   55
ANÁLISIS DE DATOS
 

ANÁLISIS DE DATOS

 

 

 

 

 

 

 

Media

101,4181818

 

Error típico
Mediana
Moda

0,696644632

 

Desviación estándar

5,166454867

 

Varianza de la muestra

26,69225589

 

Curtosis

-1,069805641

 

Coeficiente de asimetría
Rango
Mínimo
Máximo
Suma
Cuenta

-0,152354381

 
 

 
 
 
 
 

 

 

102  
104  
 

 

 

 

17  
93  
110  
5578  
55  

COVARIANZA: 5,166454867 / 26,69225589 = x 100 = 19,35563217 = 19,35%
HISTOGRAMA
VENTAS DIARIAS
POR TRIMESTRE

# VENTAS
DIARIAS

X menor:

93

X mayor:

110

K:

6

 

Ic:
93
96
99

-

95
98
101

10
8
7

102
105
108

-

104
107
110

15
7
8

2.8
VENTAS DIARIAS POR TRIMESTRE
COMPETIDOR


DATOS

103

94

99

94

96

102

95

89

91

100

98

97

99

88

101
90
102
101
92
99
97
93
105
98

91
88
90
98
97
98
102
89
91
99
96

89

97

87

97

103

88

87

101

93

91

105

93

95

93

98

91

90

95

90

101
FORMULA


 



n: 100



Nivel de confianza: 97%



Alfa: 3%



Alfa/2: 0,0150



Z0,0150: -2,18



Varianza: 0,25



Error de confianza: 10%

n:

(-2,18) ˄2 x 0,25 x 100
(-2,18)˄2 x 0,25 + 99 x (0,10
ANÁLISIS DE DATOS
ANÁLISIS DE DATOS
 
Media
Error típico

 
95,38181818
0,675941

Mediana

96

Moda

91

Desviación estándar

5,012912619

Varianza de la muestra

25,12929293

Curtosis
Coeficiente de asimetría

-1,069336079
0,051193582

Rango

18

Mínimo

87

Máximo

105

Suma
Cuenta

5246
55

COVARIANZA: 5,012912619 / 25,12929293 = x 100 = 19,94848257 = 19,94%
HISTOGRAMA

VENTAS DIARIAS
POR TRIMESTRE

87
91
95
99
103

-

# VENTAS
DIARIAS

90
94
98
102
106

X menor:
X mayor:
K:
Ic:

12
12
15
12
4

87
105
5
3,6
HISTOGRAMA

VENTAS DIARIAS
POR TRIMESTRE

87
91
95
99
103

-

# VENTAS
DIARIAS

90
94
98
102
106

X menor:
X mayor:
K:
Ic:

12
12
15
12
4

87
105
5
3,6

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Análisis comparativo ventas trimestrales fabricante vs competidor

  • 2. VENTAS DIARIAS POR TRIMESTRE FABRICANTE  DATOS 106 104 103 102 105 96 104 94 104 110 101 98 93 109 96 110 101 105 104 109 102 99 94 98 100 98 93 93 94 96 106 95 104 104 104 106 110 94 100 94 97 103 108 104 103 102 100 101 108 108 97 107 104 93
  • 3. FORMULA  n: 100  Nivel de confianza: 97%  Alfa: 3%  Alfa/2: 0,0150  Z0,0150: -2,18  Varianza: 0,25  Error de confianza: 10%        n: (-2,18) ˄2 x 0,25 x 100 (-2,18)˄2 x 0,25 + 99 x (0,10) ˄2  =  54,54 ͌   55
  • 4. ANÁLISIS DE DATOS   ANÁLISIS DE DATOS               Media 101,4181818   Error típico Mediana Moda 0,696644632   Desviación estándar 5,166454867   Varianza de la muestra 26,69225589   Curtosis -1,069805641   Coeficiente de asimetría Rango Mínimo Máximo Suma Cuenta -0,152354381                   102   104           17   93   110   5578   55   COVARIANZA: 5,166454867 / 26,69225589 = x 100 = 19,35563217 = 19,35%
  • 5. HISTOGRAMA VENTAS DIARIAS POR TRIMESTRE # VENTAS DIARIAS X menor: 93 X mayor: 110 K: 6   Ic: 93 96 99 - 95 98 101 10 8 7 102 105 108 - 104 107 110 15 7 8 2.8
  • 6. VENTAS DIARIAS POR TRIMESTRE COMPETIDOR  DATOS 103 94 99 94 96 102 95 89 91 100 98 97 99 88 101 90 102 101 92 99 97 93 105 98 91 88 90 98 97 98 102 89 91 99 96 89 97 87 97 103 88 87 101 93 91 105 93 95 93 98 91 90 95 90 101
  • 7. FORMULA     n: 100  Nivel de confianza: 97%  Alfa: 3%  Alfa/2: 0,0150  Z0,0150: -2,18  Varianza: 0,25  Error de confianza: 10% n: (-2,18) ˄2 x 0,25 x 100 (-2,18)˄2 x 0,25 + 99 x (0,10
  • 8. ANÁLISIS DE DATOS ANÁLISIS DE DATOS   Media Error típico   95,38181818 0,675941 Mediana 96 Moda 91 Desviación estándar 5,012912619 Varianza de la muestra 25,12929293 Curtosis Coeficiente de asimetría -1,069336079 0,051193582 Rango 18 Mínimo 87 Máximo 105 Suma Cuenta 5246 55 COVARIANZA: 5,012912619 / 25,12929293 = x 100 = 19,94848257 = 19,94%
  • 9. HISTOGRAMA VENTAS DIARIAS POR TRIMESTRE 87 91 95 99 103 - # VENTAS DIARIAS 90 94 98 102 106 X menor: X mayor: K: Ic: 12 12 15 12 4 87 105 5 3,6
  • 10. HISTOGRAMA VENTAS DIARIAS POR TRIMESTRE 87 91 95 99 103 - # VENTAS DIARIAS 90 94 98 102 106 X menor: X mayor: K: Ic: 12 12 15 12 4 87 105 5 3,6