ESTADISTICA EJERCICIOS RESUELTOS A
Enviado por araceliux • 21 de Septiembre de 2015 • Tareas • 337 Palabras (2 Páginas) • 442 Visitas
[pic 1]
Company | Exchange | Ticker Symbol | Market Cap ($ millions) | Price/Earnings Ratio | Gross Profit Margin (%) |
DeWolfe Companies | AMEX | DWL | 36.4 | 8.4 | 36.7 |
North Coast Energy | OTC | NCEB | 52.5 | 6.2 | 59.3 |
Hansen Natural Corp. | OTC | HANS | 41.1 | 14.6 | 44.8 |
MarineMax, Inc. | NYSE | HZO | 111.5 | 7.2 | 23.8 |
Nanometrics Incorporated | OTC | NANO | 228.6 | 38.0 | 53.3 |
TeamStaff, Inc. | OTC | TSTF | 92.1 | 33.5 | 4.1 |
Environmental Tectonics | AMEX | ETC | 51.1 | 35.8 | 35.9 |
Measurement Specialties | AMEX | MSS | 101.8 | 26.8 | 37.6 |
SEMCO Energy, Inc. | NYSE | SEN | 193.4 | 18.7 | 23.6 |
Party City Corporation | OTC | PCTY | 97.2 | 15.9 | 36.4 |
Embrex, Inc. | OTC | EMBX | 136.5 | 18.9 | 59.5 |
Tech/Ops Sevcon, Inc. | AMEX | TO | 23.2 | 20.7 | 35.7 |
ARCADIS NV | OTC | ARCAF | 173.4 | 8.8 | 9.6 |
Qiao Xing Universal Tele. | OTC | 64.3 | 22.1 | 30.8 | |
Energy West Incorporated | OTC | EWST | 29.1 | 9.7 | 16.3 |
Barnwell Industries, Inc. | AMEX | BRN | 27.3 | 7.4 | 73.4 |
Innodata Corporation | OTC | INOD | 66.1 | 11.0 | 29.6 |
Medical Action Industries | OTC | MDCI | 137.1 | 26.9 | 30.6 |
Instrumentarium Corp. | OTC | INMRY | 240.9 | 3.6 | 52.1 |
Petroleum Development | OTC | PETD | 95.9 | 6.1 | 19.4 |
Drexler Technology Corp. | OTC | DRXR | 233.6 | 45.6 | 53.6 |
Gerber Childrenswear Inc. | NYSE | GCW | 126.9 | 7.9 | 25.8 |
Gaiam, Inc. | OTC | GAIA | 295.5 | 68.2 | 60.7 |
Artesian Resources Corp. | OTC | ARTNA | 62.8 | 20.5 | 45.5 |
York Water Company | OTC | YORW | 92.2 | 22.9 | 74.2 |
Variable. | Tipo. | Unidades. | Discreta o Continua. | Escala de medición. |
Exchange. | Cualitativa. | NA | NA | Nominal. |
Ticker Symbol. | Cualitativa. | NA | NA | Nominal. |
Market Cap. | Cuantitativa. | $ millones. | Continua. | Intervalo. |
Price/Earnings Ratio. | Cuantitativo. | Porcentaje. | Continua. | Razón. |
Gross Profit Margin. | Cuantitativa. | Porcentaje. | Continua. | Razón. |
- Realice una distribución de frecuencia de la variable Size y grafique adecuadamente esta distribución; analice ambas y comente sobre lo obtenido.[pic 2]
Size | Frecuencia absoluta. |
Compact | 111 |
Midsize | 135 |
Large | 65 |
Total | 311 |
Variable Size.
[pic 3]
- Con la variable Displacement construya una distribución de frecuencia con 8 clases y grafique esta distribución analice lo obtenido.
Li | Ls | Frecuencia Acumulada. | Frecuencia Absoluta. |
1.6 | 2.175 | 43 | 43 |
2.2 | 2.775 | 126 | 83 |
2.8 | 3.375 | 171 | 45 |
3.4 | 3.975 | 239 | 68 |
4 | 4.575 | 256 | 17 |
4.6 | 5.175 | 276 | 20 |
5.2 | 5.775 | 298 | 22 |
5.8 | 6.375 | 311 | 13 |
Total. | 311 |
...