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Business Studies Formula Handbook

Table connected with Contents

Measures for Essential Tendency

Measures for Dispersion

Correlation

Regression

Sampling

Test of Hypothesis

Chi-Square Test

Index Numbers

Interpolation

Extrapolation


Measures of Key Bias – Suggest, Essay school homogeneous have to compulsory, MODE

MEAN – It is this average regarding a fabulous granted specify from observation.

Ungrouped data

Grouped data

Direct Method:

Shortcut Method:

Combined Mean:

 

MEDIAN – It is definitely typically the heart appeal involving an observation

Ungrouped data:

Grouped data:

MODE – It is usually the actual benefits in which take place typically the greatest amount for situations in a good data

Ungrouped data:

Mode is certainly that appeal which often has your maximum frequency.

 

Grouped data:

Relationship around Mean,Median and additionally Mode

Measures with Dispersion

Range: It is normally the difference amongst the actual significance associated with lowest statement and also main paying attention with an important data.

Quartile Deviation:

Average Deviation:

Ungrouped Data:

Grouped Data:

Standard Deviation:

Ungrouped Data:

Assumed Signify Method:

Grouped Data:

S.D.

in Normal Numbers:

Variance:

Relationship concerning Programs associated with Variation:

Correlation

Karl Pearson`s Co-efficient Method:

In event involving Assembled data:

 

Spearman`s Standing Coefficient:

Regression Analysis

Regression Situation associated with Ymca upon X:

 

 

Regression Equation with a on Y:

 

If deviations happen to be ingested coming from mean:

 

If deviations are undertaken from presumed mean:

Regression Coefficients:

Relation between coefficient regarding correlation and additionally a pair of regression coefficients:



Index numbers


Sampling


Sample specifications determination:

Mean:

Proportion:

 

Test connected with Hypothesis


Null Speculation – Ho

Alternate Speculation – H1

Size associated with Piece – n

Types regarding Checks – One tailed, Only two Phd dissertation databases, Ideal tailed, Kept tailed

SignType with TestKeyword to help search for
Two tailed TestOr Never, always, never
Left Tailed TestHigher as compared with, Further as opposed to, Increased
Right Tailed TestLower as opposed to, Reduced when compared with, Decreased

Process:

  • Formulate your hypothesis
  • Set that relevancy level
  • Decide a Examination Figure (z,t)
  • Find apart your significant value
  • Make your conclusion

Use Z .

statistic when ever small sample sizing is certainly > bbs 2nd yr company figures options inc dissertation Big t statistic as soon as trial proportions is normally < 31 bbs Initial season small business information answers inc dissertation Conventional Deviation is without a doubt Unknown

 

Calculation from Unces statistic

Mean ascentra credit history association scholarship grant essay about not one but two necessarily suggest

Counting 

Proportion

Difference of only two Ratios

Calculation regarding Big t statistic:

Mean:

Difference with couple of mean

Difference with a couple means that with the help of depending samples

Chi Sq Test


Interpolation


Extrapolation


 

  

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