Question # 1

Rejecting a null hypothesis, when it is true, is called

Choose an answer

Row scale

Simple hypothesis

Type 1 error

Type 2 error

Probability sampling is also called

Choose an answer

Random sampling

Discrete sampling

Continuous sampling

Standard error

The heading for different rows are called

Choose an answer

Footnotes

Prefatory note

Stub

None of these

Computer memory

Choose an answer

Performs all calculations

Receives input data

is extremely limited

is better than human memory

A null hypothesis is always one of status quo or

Choose an answer

effected

having some difference

having alternative

no difference

Mean deviation about the median is

Choose an answer

Maximum

Minimum

zero

1

The process of making tables or arranging data into rows and columns is called

Choose an answer

Classification

Tabulation

Information

Arrangement

The attributes denoted by A, B, ................ are called

Choose an answer

Positive attributes

Negative attributes

Contingency attributes

None of these

The probability of a type 1 error is

Choose an answer

Alpha

beta

Power curve

None of these

A variable whose values depend upon the outcomes of a random experiment is called a

Choose an answer

Constant

Parameter

Random variable

Continuous variable

Lack of symmetry is called

Choose an answer

Dispersion

Moment

Skewness

Kurtosis

A computer stores instructions in

Choose an answer

English language

Octal Number System

Binary Number System

Decimal Number System

For a particular test, alpha = 0.05 and beta = 0.10. The power of this test is

Choose an answer

0.15

0.90

0.85

0.95

If x and y are independent variables, then two lines of regression are

Choose an answer

x= 0, y = 0

x = 0, y = const

x = const, y = 0

x= const, y = const

If no attributes are specified, then the order of the class is

Choose an answer

0

1

n

None of these

The weighted price index is sometimes referred to as the

Choose an answer

Simple price

Composite index

Multi index

None of these

A __________ is the totality of items or things under consideration

Choose an answer

Sample

Population

Statistic

Parameter

The part of the table containing row captions is called

Choose an answer

Stub

Row captions

Box-head

Row-head

The collecting of information from a part of the population is called making a

Choose an answer

Census

Complete enumeration

Discrete sampling

None of these

The degree of relationship between the two attributes is called

Choose an answer

Association

Dichotomy

Variable

None of these

If any value is zero, then it is impossible to calculate

Choose an answer

H.M

Median

A.M

None of these

Sample mean is a

Choose an answer

Constant

Parameter

Variable

Statistic

The positive square root of the variance is refered to as the

Choose an answer

Mean deviation

Quartile deviation

Standard deviation

Range

A procedure of making judgment about the unknown value of a population parameter by using the sample observation is called

Choose an answer

Statistical Inference

Parameter

Testing of hypothesis

Statistical estimation

Most of the decisions that affect our daily lives are based upon

Choose an answer

Absolute certainty

Likelihood

Independent

None of these

Time series analysis is used to analyze data

Choose an answer

Over different time periods

Across different companies

Across different companies and across different time periods

That are qualitative

In symmetrical distribution, mean, median and mode are

Choose an answer

Equal

Different

Zero

None of these

A value calculated from sample is called

Choose an answer

Parameter

Variable

Constant

Statistic

If P(B) = 0, then the conditional probability is

Choose an answer

zero

1

undefined

-1

Bias is

Choose an answer

Non random error

Option A & C

Cumulative

None of these

A fire in a factory delaying production for 3 weeks is an example of

Choose an answer

Seasonal variation

Secular Trend

Cyclical fluctuations

Irregular Movements

More Classes

Other Links

ECAT Pre General Science Statistics Online Test MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer