ICS Part 2 Statistics Online Test

A region for which the H_o is rejected is called

• acceptance region A
• rejection region B
• critical region C
• both b and c D

The population must be defined in terms of 

• content A
• unit B
• extent C
• all of these D

1 MB equals _________byes

• 1,094,265 A
• 1,904,265 B
• 1,904,265 C
• 1,048.576 D

The degree of confidence is equal to:

• β A
• 1 - β B
• 1 - α C
• α D

The Quartile deviation (Q.D) of a normal distribution is_______.

• 4/5 σ A
• 5/4 σ B
• 2/3 σ C
• None of these D

• y-intercept A
• x-intercept B
• slope C
• none of these D

The _______ regression line always passes through (X̅, y̅).

• Opposite A
• Estimated B
• Estimates C
• Random D

The process of making estimates about the population parameter from a sample is called:

• Statistical independence A
• Statistical inference B
• Statistical hypothesis C
• Statistical decision D

Which of the following is not composite hypothesis?

• ^{μ < μ}_^ A
• μ > μ₀ B
• μ = μ_o C

The degree of relationship between the two attributes is called_______.

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

The two attributes A and B are ________associated, If (AB) < (A)(B)/n.

• Positively A
• Negatively B
• Zero C
• Symmetrical D

Total probability under the normal curve is

• 1 A
• 0 B
• -1 C
• ∞ D

Keyboard is commonly used_______device.

• Output A
• Input B
• Primary C
• Secondary D

P(μ-2σ < X=< μ + 2σ)=

• 0.6827 A
• 0.9545 B
• 0.9973 C
• 0.9827 D

If any ultimate class frequency is negative the data will be

• inconsistent A
• consistent B
• correlated C
• composite D

If X and Y are independent, then Cov(x,y) = 0 which implies that

• b_yx = 0 A
• b_xy = 0 B
• ρ = 0 C
• a = 0 D

One of the great advantages of sampling is

• waste time A
• save time B
• use time C
• need time D