Question # 1

An example in a two-sided, alternative hypothesis is:

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H₁ :u < 0

H₁ : u > 0

H₁ L u > 0

H₁ : u ≠ 0

If two attributes A and B have perfect positive association value of the coefficient of association is equal to _______.

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+1

-1

0

(r-1)(c-1)

Super computers can perform more than ---------------- calculations per second ?

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1 million

1 billion

1 trillion

1 lac

The values of test statistic which separate the rejection and non rejection regions for the test are called

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simple values

critical values

parametric values

none of these

The critical region of=χ2distribution is

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χ2 <χ2v; 1-α

χ2 <χ2v;1-α

χ2 <χ2 v;1-α/2

χ2 <χ2v;1-α/2

The following statistic are unbiased estimators:

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The Sample mean

S² = Σ(X - X)²/n-1

The sample proportion

All the above

The bias increases by increasing the sample_______.

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Unit

Number

Size

None of these

Degree of linear relationship between two variables is called

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regression

association

correlation

disassociation

The total area under the curve of chi-square distribution is_______.

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1

0.5

0 to ∞

-∞ to +∞

The graph of time series is called:

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Histogram

Historigram

Straight line

Ogive

Confidence intervals which are often used in practice are

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90%

95%

98%

all of these

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

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Opposite

Estimated

Estimates

Random

Total probability under the normal curve is

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1

0

-1

∞

In N is the size of population and N is the size of sample then possible samples that can be drawn with replacement are.

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N/n

Nⁿ

Nen

None of these

If we reject Ho when Ho is actually true then it is

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type - I error

type - II error

type - III error

type - IV error

In case of symmetrical distribution

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μ₁ = μ₂ = μ₃ = μ₄

β₁ = β₂

P₁ < P₂

A single value used to estimate a population value is called:

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Interval estimate

Point estimate

Confidence interval

Level of confidence

The probability associated with confidence interval is called:

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Level of confidence

Confidence coefficient

Both A and B

Confidence limits

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Statistics Ics Part 2 Online Test MCQs With Answers

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