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Central Tendency and Dispersion in Statistics:
Write a note on the following :
i) What is the importance of Measures Of Central Tendency and Dispersion in Statistics ?
ii) Define Correlation coefficient and discuss two methods of its computation .
iii) What is regression analysis ? Discuss the relation between 'correlation coefficient ' and the 'regression coefficients'.
Ques: Data on the scores obtained by A & B are given below :
A
B
23 24 43 37 26
43 37 29 49 41
23 37 43 41 26
37 24 29 43 49
29 18 23 24 25
23 24 28 35 39
34 18 35 24 42
37 41 25 23 39
i) Compare Arithmetic Mean and Standard Deviation for the two groups and compute pooled mean and variances.
ii) Comment on the consistency between A and B.
find the expected value of the mean square error and of the mean square reggression
Objective of index numbers
The data le for this assignment is brain-body-wts.txt, which lists the averages brain weights (gm) and body weights (kg) for a number of animal species. Your task is to t an appr
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Multivariate analysis of variance (MANOVA) is a technique to assess group differences across multiple metric dependent variables simultaneously, based on a set of categorical (non-
How can we analyse data with four bilateral response variables measured with errors and three covariated measured without errors?
What is a null hypothesis? ..
Construct index numbers of price for the following data by applying: i) Laspeyre’s method ii) Paasche’s method iii) Fisher’s Ideal Index number
First Moment of Dispersion or Mean Deviation Mean deviation or the average deviation is the measure if dispersion which is based upon all the items in a variable .It is the a
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