ISS (Statistical Services) Statistics Paper II (New 2016 MCQ Pattern): Questions 229 - 234 of 253

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Question 229

Question

MCQ▾

As the sample size increases the length of the confidence interval …

Choices

Choice (4)Response

a.

Decreases

b.

Cannot be determined with the given information

c.

It will stay the same

d.

Increases

Question 230

Question

MCQ▾

Formula for obtaining 95 % confidence limits for the mean μ of a Normal population with mean μ and standard deviation σ are

Choices

Choice (4)Response

a.

b.

c.

d.

All a., b. and c. are correct

Question 231

Question

MCQ▾

The method of least square estimation is mostly used in estimating the parameters of ________ function

Choices

Choice (4)Response

a.

Discrete

b.

Linear

c.

Continuous

d.

All of the above

Question 232

Question

MCQ▾

It is given that sample size n = 10, sample Mean and Standard Deviation = 11.1. Then 95 % Confidence Interval for the population is

Choices

Choice (4)Response

a.

b.

c.

d.

Question 233

Question

MCQ▾

What is the 95 % Confidence Interval if n = 100, sample mean and population standard deviation

Choices

Choice (4)Response

a.

b.

c.

d.

All of the above

Question 234

Question

MCQ▾

A Electric company wants to estimate the amount of electric bills of the past month. He takes a random sample of 18 households and obtains the following amounts, (in ₹) for their past month electric bill. It is given that

 1608 1875 1264 1794 1478 1999 1828 2206 1798 1794 1738 1740 1598 1486 1830 1568 1941 1516

The 95 % confidence interval of the mean electric bill will be

Choices

Choice (4)Response

a.

b.

c.

d.