ISS (Statistical Services) Statistics Paper II (New 2016 MCQ Pattern): Questions 111 - 114 of 246

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Question number: 111

» Statistical Inference and Hypothesis Testing » Cramer-Rao Inequality

MCQ▾

Question

Regularity conditions of Cramer-Rao inequality are related to

Choices

Choice (4) Response

a.

Integrability of functions

b.

Neither (i) and (ii)

c.

Differentiability of functions

d.

Both a. and c. are correct

Question number: 112

» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation

MCQ▾

Question

A school wants to study the number of days the students will be absent from school per year. It surveys attendance of 10 children and the number of days the children is absent from schools are

Samples from schools and students

What are the readings of the family?

12

13

9

11

7

8

4

9

5

8

Standard deviation Equation . Then 95 % Confidence interval on population mean is

Choices

Choice (4) Response

a.

8.6±2.05

b.

6.55 ≤ μ ≤ 10.65

c.

Equation

d.

All a. , b. and c. are correct

Question number: 113

» Statistical Inference and Hypothesis Testing » Characteristics of Good Estimator

MCQ▾

Question

Equation is an ________ where as Equation is an ________

Choices

Choice (4) Response

a.

Estimate and an estimator

b.

Estimator and an estimate

c.

Question does not provide sufficient data or is vague

d.

All of the above

Question number: 114

» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation

MCQ▾

Question

Suppose we want to estimate the Equation mean amount of money spent by students on some project in a year. We have the following data of 10 randomly selected students. and calculated sample mean is 249 Rs. and standard deviation is 30 Rs. 95 % Confidence interval for Equation is:

Choices

Choice (4) Response

a.

Equation

b.

256.89±290.68

c.

Equation

d.

Equation

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