ICS Part 2 Statistics Online Test

The degree of relationship between the two attributes is called_______.

• Association A
• Correlation B
• Contingency C
• Quantitative D

The secular trend is measured by the method of semi-averages when:

• Time series contains yearly value A
• Trend is linear B
• Time series contains odd number of values C
• None of them D

The two attribute A and B are positively associated, if _________.

• (AB) = (A)(B)/n A
• (AB) < (A)(B)/n B
• (AB) ≠ (A)(B)/n C
• (AB) > (A)(B)/n D

If sampling is done with replacement the σ_p =

• 
  A
• 
  B
• 
  C
• 
  D

A numerical characteristic calculated from sample is called:

• Sample unit A
• Sample design B
• Statistic C
• Parameter D

Statistical inference has two branches namely:

• Level of confidence and degrees of freedom A
• Biased estimator and unbiased estimator B
• Point estimate and interval estimate C
• Estimation of parameter and testing of hypothesis D

The distance between an estimate and the estimated parameter is called:

• Sampling error A
• Standard error B
• Bias C
• Error of estimation D

(1-α) is called:

• Critical value A
• Level of significance B
• Level of confidence C
• Interval estimate D

• independent A
• positively associated B
• negatively associated C
• correlated D

The normal distribution is a _______.

• Positive A
• Negative B
• Discrete C
• Continuous D

The values of test statistic which separate the rejection and non rejection regions for the test are called

• simple values A
• critical values B
• parametric values C
• none of these D

In case of normal distribution maximum value of ordinate is

• μ A
• Zero B
• 
  C
• 
  D

The two attributes A and B are negatively associated if

• 
  A
• 
  B
• 
  C
• 
  D

All odd ordered moments about mean are ______ in a normal distribution.

• Zero A
• Unity B
• Positive C
• Negative D

If constants are added to or subtracted from the values of the variables, the value of r 

• is negative A
• is positive B
• is zero C
• remains unchanged D

If 1-α = 0.90, the value of Z_a/2 is:

• 1.645 A
• 1.96 B
• 2.326 C
• 2.575 D

The variable, whose resulting value depends upon the selected value of the independent variable is called______.

• Regression A
• Regressor B
• Regressand C
• Coefficient D