Central tendency and dispersion in statistics, Applied Statistics

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.

Posted Date: 2/12/2013 12:53:13 AM | Location : United States







Related Discussions:- Central tendency and dispersion in statistics, Assignment Help, Ask Question on Central tendency and dispersion in statistics, Get Answer, Expert's Help, Central tendency and dispersion in statistics Discussions

Write discussion on Central tendency and dispersion in statistics
Your posts are moderated
Related Questions
Now, let's look at a different linear combination. Suppose we are interested n comparing the average mean log income for no college education ( 16). 1. Write out the linear com

According to a recent study, when shopping online for luxury goods, men spend a mean of $2,401, whereas women spend a mean of $1,527. Suppose that the study was based on a sample o

for this proportion, use the +-2 rule of thumb to determine the 95 percent confidence interval. when asked if they are satisfied with their financial situation, .29 said "very sat

The Quality Manager of a battery manufacturing plant reviewed the warranty records within his department and found that 4% of the low maintenance batteries produced at the plant ov

In the context of multivariate data analysis, one might be faced with a large number of v&iables that are correlated with each other, eventually acting as proxy of each other. This

Question 3 25 marks Your employer, Quick Hit Agency (QHA), is a debt collections agency. The company specializes in collecting small accounts. QHA does not deal in large accounts

ogives graph

A study was conducted to determine the amount of heat loss for a certain brand of thermal pane window. Three different windows were randomly subjected to each of three different ou

PCA is a linear transformation that transforms the data to a new coordinate system such that the greatest variance by any projection of the data comes to lie on the first coordinat