ISS Statistics Paper II (New 2016 MCQ Pattern): Questions 196 - 199 of 246

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Question number: 196

» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation

MCQ▾

Question

Confidence intervals can be constructed ________

Choices

Choice (4) Response

a.

Only for the parameter of population correlation

b.

Only for the parameter of the mean

c.

For various parameters

d.

All of the above

Question number: 197

» Statistical Inference and Hypothesis Testing » Minimum Variance Unbiased Estimators

MCQ▾

Question

If T1 and T2 are two Minimum Variance Unbiased (MVU) estimators for γ(θ), then

Choices

Choice (4) Response

a.

Either T1>T2 or T2>T1

b.

T1T2

c.

T1=T2

d.

Question does not provide sufficient data or is vague

Question number: 198

» Statistical Inference and Hypothesis Testing » Moments and Least Squares

MCQ▾

Question

For a simple linear model Y=β0+β1X+ϵ , the normal equations for estimating the values values of β0 and β1 by the method of least square will be

Choices

Choice (4) Response

a.

yi=nβ^0+β^1xi and xiyi=β^0xi+β^1xi2

b.

yi=nβ^0 and xiyi=β^0xi

c.

yi=β^1xi and xiyi=β^1xi2

d.

Question does not provide sufficient data or is vague

Question number: 199

» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation

MCQ▾

Question

(1α)100% Confidence intervals for the parameters μ , of the Normal distribution having density function N(μ,σ2) , in case of known variance σ2 , is given by

Choices

Choice (4) Response

a.

(x¯zα2σn,x¯+zα2σn)

b.

(x¯tα2σn,x¯+tα2σn)

c.

(x¯t1α2σn,x¯+t1α2σn)

d.

None of the above

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