Statistical Inference and Hypothesis Testing-Confidence Interval Estimation (ISS Statistics Paper II (New 2016 MCQ Pattern)): Questions 54 - 57 of 73

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Question number: 54

» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation

MCQ▾

Question

A confidence interval is ________ of a Population parameter

Choices

Choice (4) Response

a.

Interval Estimate

b.

Point Estimate

c.

Maximum Estimate

d.

None of the above

Question number: 55

» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation

MCQ▾

Question

Suppose we have =10 , x¯=249 , s=30 Then to compute 95 % confidence for μ which critical point is used?

Choices

Choice (4) Response

a.

tα,(n1)=t0.025,9

b.

tα,(n1)=t0.025,10

c.

zα=z0.025α

d.

zα=z0.05

Question number: 56

» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation

MCQ▾

Question

Suppose we wish to estimate the average height of the tigers in India. We take a sample of 130 tigers and measure their heights. The mean height is 98.249 cms. The calculated standard deviation is σ=0.064 cms, then the confidence interval for the population mean at 95 % confidence limit is

Choices

Choice (4) Response

a.

[98.124, 98.374]

b.

[102.1, 102.78]

c.

[100.86, 100.90]

d.

[101.86, 102.78]

Question number: 57

» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation

MCQ▾

Question

Suppose we want to estimate the average weight of cow in India. We draw a random sample of 1, 000 cows and weigh them. The mean was 180 pounds with a standard deviation of 30 pounds. What is the 95 % confidence interval?

Choices

Choice (4) Response

a.

[178.14, 180]

b.

[178.14, 181.86]

c.

[78.14, 81.86]

d.

[120.3, 281.86]

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