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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
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Corelation and Regression
Assume the same variables as in question 28 above; height is measured in feet and weight is measured in pounds. Now, suppose that the units of both variables are converted to metric (meters and kilograms). The impact on the slope is:
the sign of the slope will change
the magnitude of the slope will change
both a and b are correct
neither a nor b are correct
Author:
rikazzz
Comment
Measures of Central Tendency
Which of the following cannot be less than zero (negative)?
Median
Geometric Mean
Arithmetic Mean
Harmonic Mean
Author:
rikazzz
Comment
Statistical Inference
The value which is obtain by applying an estimator on sample information is known as an:
Estimation
Estimator
Both A and B
Estimate
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Corelation and Regression
The ratio of the average deviations is called:
Regression
Correlation
Skewness
All of these
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rikazzz
Comment
Measures of Dispersion
The measure of dispersion which uses only two observations is called___________-
Mean
Median
Range
Coefficient of variation
Author:
rikazzz
Comment
Corelation and Regression
If two variables, x and y, have a very strong linear relationship, then :
there is evidence that x causes a change in y
there is evidence that y causes a change in x
there might not be any causal relationship between x and y
None of these alternatives is correct.
Author:
rikazzz
Comment
Measures of Central Tendency
If any of the value in data set is negative then it is impossible to compute:
Arithmetic Mean
Harmonic Mean
Geometric Mean
Mode
Author:
rikazzz
Comment
Measures of Dispersion
If Q3=20 and Q1=10, the coefficient of quartile deviation is:
3
1/3
2/3
1
Author:
rikazzz
Comment
Introduction to Statistics
Given $X_1=12,X_2=19,X_3=10,X_4=7$, then $sum_{i=1}^4 X_i$ equals?
36
48
41
29
Author:
rikazzz
Comment
Sampling Techniques
Regression method of estimation is used to get:
small variance
large variance
unbiased variance
biased but consistent variance
Author:
rikazzz
Comment
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