Question

CAPSTONE: Technology Management

9. Explain the limitations of a statistical average and how they can be dealt with.

Answer 1

1. Qualitative aspect overlooked:

The statistical approaches don't study the character of phenomenon which can't be expressed in quantitative phrases.

Such phenomena can not be part of the learn of statistics. These incorporate well being, riches, intelligence and so forth. It wishes conversion of qualitative information into quantitative information.

So experiments are being undertaken to measure the reactions of a person via information. Now a days statistics is used in all the features of the life as good as universal routine.

2. It does now not care for man or woman objects:

it is clear from the definition given by means of Prof. Horace Sacrist, by using statistics we imply aggregates of tips. And positioned relating to every different, that records deals with best aggregates of tips or items and it does now not recognize any man or woman object. Thus, character terms as loss of life of 6 folks in a accident, 85% results of a category of a institution in a unique year, will not quantity to facts as they aren't placed in a gaggle of an identical items. It does not maintain the person objects, nonetheless, principal they may be.

3. It does not depict entire story of phenomenon:

When even phenomena occur, that is due to many factors, however all these motives cannot be expressed in phrases of data. So we can not reach on the proper conclusions. Development of a gaggle depends upon many social causes like, mothers and fathers monetary condition, education, tradition, neighborhood, administration through government and many others. But all these causes cannot be placed in knowledge. So we analyse simplest that knowledge we find quantitatively and not qualitatively. So results or conclusion will not be a hundred% right considering that many elements are unnoticed.

Four. It is in charge to be miscued:

As W.I. King elements out, one of the most short-comings of facts is that don't bear on their face the label of their first-class. that allows you to say that we will verify the information and methods of its drawing near to conclusions. But these knowledge can have been amassed by way of inexperienced folks or they may had been dishonest or biased. As it's a soft science and can be without problems misused through an unscrupulous character. So data need to be used with a caution. Otherwise results may prove to be disastrous.

5. Laws should not distinctive:

so far as two major laws are concerned with information:

(i) regulation of inertia of large numbers and

(ii) law of statistical regularity, are not so good as their science laws.

They're based on chance. So these results will not always be as good as of scientific legal guidelines. On the groundwork of chance or interpolation, we are able to best estimate the production of paddy in 2008 but can't make a claim that it will be precisely a hundred %. Right here simplest approximations are made.

6. Results are authentic most effective on natural:

As mentioned above, right here the outcome are interpolated for which time series or regression or likelihood can be utilized. These aren't definitely actual. If ordinary of two sections of pupils in facts is identical, it does now not mean that all of the 50 pupils is section A has received equal marks as in B. There is also a lot variant between the two. So we get usual outcome.

statistics mostly offers with averages and these averages may be made from individual items radically exclusive from every different.W.L King

7. To Many ways to study problems:

on this field we use so many methods to find a single influence. Variant can be located via quartile deviation, imply deviation or commonplace deviations and results range in each case.

It have got to now not be assumed that the records is the only approach to use in research, neither will have to this process of regarded the first-rate assault for the trouble.Croxten and Cowden

8. Statistical outcome aren't constantly beyond doubt:

facts offers only with measurable aspects of things and as a result, can seldom supply the complete method to main issue. They provide a groundwork for judgement but now not the whole judgment.Prof. L.R. Connor

even though we use many legal guidelines and formulae in data however nonetheless the results finished usually are not ultimate and conclusive. As they are unable to provide complete way to a difficulty, the outcome ought to be taken and used with a lot wisdom.