ISS (Statistical Services) Statistics Paper II (New 2016 MCQ Pattern): Questions 244 - 248 of 253
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Question 244
Question
MCQ▾Cramer-Rao Inequality provides a Lower bond to the variance of an ________ estimator for a parameter.
Choices
Choice (4) | Response | |
---|---|---|
a. | Maximum Likelihood estimator | |
b. | Unbiased | |
c. | Consistent | |
d. | Sufficient |
Question 245
Question
MCQ▾A Statistical Hypothesis, which specifies the population completely, is known as
Choices
Choice (4) | Response | |
---|---|---|
a. | Null Hypothesis | |
b. | Composite Hypothesis | |
c. | Simple Hypothesis | |
d. | None of the above |
Question 246
Question
MCQ▾The confidence level is 95 % . This means
Choices
Choice (4) | Response | |
---|---|---|
a. | 95 % of the samples will contain the population mean and 5 % of the samples do not contain the population mean | |
b. | 95 % of the samples do not contain the population mean and 5 % of the samples will contain the population mean | |
c. | We are 100 % confident that the samples will contain the population mean | |
d. | None of the above |
Question 247
Question
MCQ▾In an Irreducible Markov chain:
Choices
Choice (4) | Response | |
---|---|---|
a. | You can move from one state to another only in 1 direction | |
b. | You can only move between 1 of two states | |
c. | There is at least one state when you can go with 0 probability. | |
d. | All the states can communicate with each other |
Question 248
Question
MCQ▾Which of the following is a property of a renewable process?
Choices
Choice (4) | Response | |
---|---|---|
a. | Inter arrival intervals are negative | |
b. | Inter arrival intervals are positive | |
c. | Inter arrival intervals may be identically distributed | |
d. | Question does not provide sufficient data or is vague |