Metodos Estadisticos

ANALISIS ESTADISTICO DE ERRORES

PROCEDIMIENTO EXPERIMENTAL:
PARTE 1:

1. Se peso 50 clips, individualmente en una balanza analítica.

2. Luego de los 50 clips se dividieron en 10 series de 5 clips cada uno para luego pesar uno por uno en la balanza analítica.

3. Luego se pesaron 4 clips individualmente y un clip alterado en peso de forma intencional.

4. Por último sepeso 10 clips tomados al azar individualmente.

PARTE 2:

1. Se preparo una solución de NaOH 0.1N y se estandarizo con ftalato acido de potasio.

2. Se realizo 5 veces la titilación de 2mL de una solución de HCl aprox. 0.1N con el NaOH 0.1N estandarizado desde una micro bureta de 10mL. Se repitió nuevamente el experimento utilizando una bureta de 25mL.

3. Se realizo 5 veces latitilación de 10mL de una solución de HCl aprox. 0.1N con el NaOH 0.1N estandarizado desde una micro bureta de 10mL. Se repitió nuevamente el experimento utilizando una bureta de 25mL.

CALCULOS Y DATOS TABULADOS
* PRIMERA PARTE:
1. Análisis Estadístico ( Mediciones de clips)
N° | PESO (g) | Z obs | P obs | Z esp |
1 | 0.4415 | -0.4967182 | 0.01243781 | -2.24332876 |
2 | 0.4581 |1.58338325 | 0.03233831 | -1.84748682 |
3 | 0.4576 | 1.52072959 | 0.05223881 | -1.62352318 |
4 | 0.4435 | -0.24610357 | 0.0721393 | -1.46004172 |
5 | 0.4465 | 0.12981838 | 0.0920398 | -1.32829824 |
6 | 0.4606 | 1.89665154 | 0.1119403 | -1.21627391 |
7 | 0.4358 | -1.2109699 | 0.1318408 | -1.11773172 |
8 | 0.4599 | 1.80893642 | 0.15174129 | -1.0289938 |
9 | 0.4317 | -1.7247299 |0.17164179 | -0.94769729 |
10 | 0.4535 | 1.00696959 | 0.19154229 | -0.87222696 |
11 | 0.4464 | 0.11728765 | 0.21144279 | -0.80142513 |
12 | 0.4462 | 0.09222618 | 0.23134328 | -0.73443023 |
13 | 0.4574 | 1.49566813 | 0.25124378 | -0.67058089 |
14 | 0.4415 | -0.4967182 | 0.27114428 | -0.60935591 |
15 | 0.4453 | -0.0205504 | 0.29104478 | -0.5503351 |
16 | 0.4481 | 0.33031009 | 0.31094527 |-0.49317273 |
17 | 0.4397 | -0.72227137 | 0.33084577 | -0.43757894 |
18 | 0.4472 | 0.2175335 | 0.35074627 | -0.38330648 |
19 | 0.4389 | -0.82251722 | 0.37064677 | -0.33014086 |
20 | 0.4375 | -0.99794747 | 0.39054726 | -0.27789296 |
21 | 0.4399 | -0.69720991 | 0.41044776 | -0.22639332 |
22 | 0.4373 | -1.02300893 | 0.43034826 | -0.17548759 |
23 | 0.4503 | 0.60598618 | 0.45024876 |-0.12503289 |
24 | 0.4409 | -0.57190259 | 0.47014925 | -0.07489468 |
25 | 0.4488 | 0.41802521 | 0.49004975 | -0.02494416 |
26 | 0.4403 | -0.64708698 | 0.50995025 | 0.02494416 |
27 | 0.4415 | -0.4967182 | 0.52985075 | 0.07489468 |
28 | 0.4442 | -0.15838845 | 0.54975124 | 0.12503289 |
29 | 0.457 | 1.4455452 | 0.56965174 | 0.17548759 |
30 | 0.4502 | 0.59345545 | 0.58955224 | 0.22639332 |
31| 0.4455 | 0.00451106 | 0.60945274 | 0.27789296 |
32 | 0.4295 | -2.000406 | 0.62935323 | 0.33014086 |
33 | 0.4491 | 0.4556174 | 0.64925373 | 0.38330648 |
34 | 0.4418 | -0.45912601 | 0.66915423 | 0.43757894 |
35 | 0.4381 | -0.92276308 | 0.68905473 | 0.49317273 |
36 | 0.4579 | 1.55832178 | 0.70895522 | 0.5503351 |
37 | 0.4558 | 1.29517642 | 0.72885572 | 0.60935591 |
38 | 0.4511 |0.70623203 | 0.74875622 | 0.67058089 |
39 | 0.4412 | -0.5343104 | 0.76865672 | 0.73443023 |
40 | 0.4338 | -1.46158454 | 0.78855721 | 0.80142513 |
41 | 0.4396 | -0.7348021 | 0.80845771 | 0.87222696 |
42 | 0.4414 | -0.50924893 | 0.82835821 | 0.94769729 |
43 | 0.4457 | 0.02957253 | 0.84825871 | 1.0289938 |
44 | 0.4518 | 0.79394716 | 0.8681592 | 1.11773172 |
45 | 0.4479 | 0.30524862 |0.8880597 | 1.21627391 |
46 | 0.4262 | -2.41392014 | 0.9079602 | 1.32829824 |
47 | 0.4505 | 0.63104764 | 0.9278607 | 1.46004172 |
48 | 0.4436 | -0.23357284 | 0.94776119 | 1.62352318 |
49 | 0.4424 | -0.38394162 | 0.96766169 | 1.84748682 |
50 | 0.453 | 0.94431593 | 0.98756219 | 2.24332876 |

* Determinación de:

MEDIA | 0.445464 |
Desviación Estándar | 0.00798038 |
VARIANZA |...