ELEMENTS OF STATISTICS, SET 14

ELEMENTS OF STATISTICS

Q.1

What does a hypothesis called under test ?

Ans. 

Null hypothesis.

Q.2

What do you call the probability of type 1 error?

Ans. 

The level of significance.

Q.3

When the value of x²-static is zero ?

Ans. 

If the observed frequency is equal to expected one.

Q.4

The difference between sample estimate and the corresponding population parameter is called

Ans. 

Sampling error.

Q.5

Larger samples are required for getting the

Ans. 

Higher precision.

Q.6

If our estimates based on sample values are closer to the population parameters, the estimate can be regarded as 

Ans. 

Reliable.

Q.7

What is the most frequently used index number formula ?

Ans. 

Weighted formula.

Q.8

What is another name of Laspeyre's index number?

Ans. 

Base year method index number.

Q.9

Which index number is generated if the geometric mean of Laspeyre's and Paasche's index number is taken ?

Ans. 

Fisher's ideal index number.

Q.10

Laspeyre's was a

Ans. 

French economist.

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