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Measures of Central Tendency
48
Measures of Dispersion
49
Corelation and Regression
48
Introduction to Statistics
50
Statistical Inference
41
Probability Distribution
47
Sampling Techniques
47
Statistical Packages For Social Science
0
Statistical Methods
0
Business Statistics
576
Show/Hide Answers
Statistical Inference
If f(X ; ) = ; 0 X . We cannot find the MLE of “?” by using:
Real procedures
Baye’s method
Least square method for estimation.
None of these
Author:
rikazzz
Comment
Corelation and Regression
If the correlation coefficient is a positive value, then the slope of the regression line :
must also be positive
can be either negative or positive
can be zero
can not be zero
Author:
rikazzz
Comment
Corelation and Regression
What will be the range of r when we find that the dependent variable increases as the independent variableincreases?
0 to -0.05
1 to 2
0 .1 to 1
None of these
Author:
rikazzz
Comment
Measures of Central Tendency
To find the average speed of a journey which is the appropriate measure of central tendency:
Mean
Geometric Mean
Harmonic Mean
Weighted Mean
Author:
rikazzz
Comment
Corelation and Regression
Suppose the correlation coefficient between height (as measured in feet) versus weight (as measured in pounds) is 0.40. What is the correlation coefficient of height measured in inches versus weight measured in ounces? [12 inches = one foot; 16 ounces = one pound] :
0.40
0.30
0.533
cannot be determined from information given e. none of these
Author:
rikazzz
Comment
Sampling Techniques
In regression method of estimation b and B are:
same
constant
variable
sample and population regression coefficient respectively
Author:
rikazzz
Comment
Measures of Central Tendency
Standard deviation is calculated from the Harmonic Mean (HM):
Always
Sometimes
Never
None of these
Author:
rikazzz
Comment
Measures of Central Tendency
If in a distribution left tail is longer than right tail, then the distribution will be:
Symmetrical
Positive skewed
Negative skewed
None of these
Author:
rikazzz
Comment
Measures of Dispersion
The value of standard deviation changes by a change of:
Origin
Scale
Algebraic signs
None
Author:
rikazzz
Comment
Probability Distribution
If x ~ F(n_1,n_2) then ……..~ F(n_2,n_1 ):
x2
1/x
?2
None of these
Author:
rikazzz
Comment
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