Question # 1

The range of a normal distribution is

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—∞ to 1

—∞ to 0

—∞ to + ∞

0 to ∞

For a least squares linear trend=ŷ= a + b x,

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Σy <Σŷ

Σŷ = 0

Σy =Σŷ

none of these

ŷ=a+bx, this line will be called least squares line if it makes=Σ(y-a-bx)2

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maximum

constant

minimum

variable

Which error is occurred when the defendant were found guilty if, infect the defendant is innocent

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type-I

type-II

no error

both a and b

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

The alternative hypothesis always contains the sign of

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equality

inequality

ratio

proportion

P(type I error) is equal to:

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1 - α

1 - β

α

β

The bias increases by increasing the sample_______.

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Unit

Number

Size

None of these

The regression equation always passes throught_________.

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(X, Y)

(X, y̅)

(X̅, Y)

(X̅, y̅)

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

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one

two

one or more

three

The standard error of the estimate increased by decreasing

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population

sample size

errors

precision

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Statistics Ics Part 2 Online Test MCQs With Answers

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