ISS (Statistical Services) Statistics Paper II (New 2016 MCQ Pattern): Questions 179 - 183 of 246

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Question number: 179

» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation

MCQ▾

Question

In a college survey, children were asked how many hours they study per day. A sample of 22 children is collected. The mean was 3.25 hours with a standard deviation of 1.57 hours. Then 95 % and 99 % confidence interval for the number of hours of study per day is

Choices

Choice (4) Response

a.

and

b.

and

c.

and

d.

All of the above

Question number: 180

» Statistical Inference and Hypothesis Testing » Sufficient Estimator

MCQ▾

Question

A statistic is called as ________ Estimator for the parameter θ, if the conditional distribution of given T does not depend on θ.

Choices

Choice (4) Response

a.

Unbiased

b.

Maximum Likelihood estimator

c.

Efficient

d.

Sufficient

Question number: 181

» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation

MCQ▾

Question

A survey of 200 factory workers provides a sample mean of 7.10 hours worked. What is the 95 % confidence interval based on this sample. Calculated standard deviation is 5 hours.

Choices

Choice (4) Response

a.

b.

c.

d.

Both a. and b. are correct

Question number: 182

» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation

MCQ▾

Question

The 99 % confidence interval for of the normal population is given by

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 183

» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation

MCQ▾

Question

It is given that n = 1029, and . Then the 90 % Confidence Interval for the population mean is given by

Choices

Choice (4) Response

a.

b.

c.

d.

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