Statistical Inference and Hypothesis Testing (ISS (Statistical Services) Statistics Paper II (New 2016 MCQ Pattern)): Questions 161 - 164 of 222

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Question number: 161

» Statistical Inference and Hypothesis Testing » Minimum Variance Unbiased Estimators

MCQ▾

Question

A Minimum Variance Unbiased Estimator Equation is said to be unique if for any other estimator Equation ,

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Neither (i) nor (ii)

d.

Question does not provide sufficient data or is vague

Question number: 162

» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation

MCQ▾

Question

Given the probability statement that Equation

Which of the following statement is correct in respect of given probability statement?

Choices

Choice (4) Response

a.

The confidence interval is 11.32

b.

4.35 and 15.67 are 90 percent confidence limits

c.

Probability that Equation lies in the interval 4.35 and 15.67 is 0.90

d.

All a. , b. and c. are correct

Question number: 163

» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation

MCQ▾

Question

Suppose we wish to estimate the average height of the tigers in India. We take a sample of 130 tigers and measure their heights. The mean height is 98.249 cms. The calculated standard deviation is Equation cms, then the confidence interval for the population mean at 90 % confidence limit is

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 164

» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation

MCQ▾

Question

Equation Confidence intervals for the parameters Equation , of the Normal distribution Equation , when Equation is known, is given by

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Both a. and b. are correct

d.

Question does not provide sufficient data or is vague

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