ISS Statistics Paper II (New 2016 MCQ Pattern): Questions 180 - 184 of 246

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 246 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.

Rs. 200.00 or

Question number: 180

» Statistical Inference and Hypothesis Testing » Sufficient Estimator

MCQ▾

Question

A statistic T=t(x1,x2,..,xn) is called as ________ Estimator for the parameter θ, if the conditional distribution of x1,x2,..,xn 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.

[6.41, 7.79]

b.

7.10±0.693

c.

[14.69, 17.71]

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 μ of the normal population is given by

Choices

Choice (4) Response
a.

x¯±2.58σn

b.

x¯±0.025σn

c.

x¯±1.96σn

d.

x¯±0.01σn

Question number: 183

» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation

MCQ▾

Question

It is given that n = 1029, x¯=1.9 and σ=1.95 . Then the 90 % Confidence Interval for the population mean μ is given by

Choices

Choice (4) Response
a.

[1.8,2.0]

b.

[3.2, 5.9]

c.

[10.2, 15.36]

d.

[5.6, 8.9]

Question number: 184

» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation

MCQ▾

Question

Suppose we take a random sample from some population and obtain a 96 % confidence interval for the population mean, μ , then which quantity is guaranteed to be in the interval?

Choices

Choice (4) Response
a.

μ

b.

s

c.

x¯

d.

μ & s

Sign In