Question # 1

A statement about the value of a population parameter is called:

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Null hypothesis

Alternative hypothesis

Simple hypothesis

Composite hypothesis

If 6Σd²/n(n² - 1) is zero, the value of r_s is ________.

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0.5

1

-1

0

A binary digit is commonly called:

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Byte

Kilobyte

Gigabyte

Bit

Keyboard, mouse and scanner are the ---------- devices

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input

output

logical

mini

In case of normal distribution the area to the left of the mean and area to the right of the mean is

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positive

negative

equal

unequal

A set of points in a rectangular coordinate system, where each point represents an observed pair of values is called

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least square regression

scatter diagram

pie graph

regression coefficient

The error which arises due to faulty sampling frames and processing of data is called

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random error

sampling error

non-sampling error

systematic error

Estimation is of two types:

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One sides and two sides

Type I and type II

Point estimation and interval estimation

Biased and unbiased

n = (A) + --------------------

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(B)

(α)

(β)

(A)

The maximum ordinate of a normal curve is at X = ________.

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μ

σ

X̅

S.D

100(1-α)% confidence interval for population proportion of success,&=nbsp;π is

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P (L <μ < U) = 1 - α

P (L <σ < U) = 1 - α

P (L <π< U) = 1 - α

P (L <P&=nbsp;< U) = 1 - α

A statistical hypothesis is an assertion or conjecture about the distribution of random variables

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one

two

one or more

three

A process of dividing the objects into two mutually exclusive classes of an attribute is called

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classification

trichotomy

dichotomy

association

The normal distribution is a bell shaped_______ distribution.

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Discrete

Continuous

Symmetrical

Skewed

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S_xy

S_yx

b_xy

b_yx

Random sampling provide reliable ______.

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Samples

Units

Estimates

Frame

If (1-α) is increased, the with of a confidence interval is:

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Decreased

Increased

Constant

Same

Statistic is an estimator and its calculated value is called:

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Biased estimate

Estimation

Interval estimate

Estimate

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ICS Part 2 Statistics Online Test MCQs With Answers

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