Statistical Inference and Hypothesis Testing-Confidence Interval Estimation (ISS Statistics Paper II (New 2016 MCQ Pattern)): Questions 34 - 37 of 73

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: 34

» 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.

[3.25, 5.33] and [5.33, 4.19]

b.

[1.17, 1.57] and [3.1, 4.19]

c.

[1.17, 5.33] and [2.30, 4.19]

d.

All of the above

Question number: 35

» 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: 36

» 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: 37

» 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]

Sign In