Statistical Inference and Hypothesis Testing-Confidence Interval Estimation [ISS (Statistical Services) Statistics Paper II (New 2016 MCQ Pattern)]: Questions 7 - 11 of 73

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Question number: 7

» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation

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Question

Suppose we want to estimate the 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 is:

Choices

Choice (4)Response

a.

256.89±290.68

b.

c.

d.

Question number: 8

» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation

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Formula for obtaining 99 % confidence limits for the mean μ of a Normal population with mean μ and standard deviation σ are

Choices

Choice (4)Response

a.

b.

c.

d.

All a. , b. and c. are correct

Question number: 9

» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation

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Suppose The confidence interval is given by the relation . Then is called as the

Choices

Choice (4)Response

a.

Correlation Coefficient

b.

Confidence coefficient

c.

Confidence interval

d.

None of the above

Question number: 10

» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation

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For the Confidence Interval we use……. . and For the Confidence Interval we use ……. .

Choices

Choice (4)Response

a.

Z -table, t- table

b.

t -table, Z- table

c.

Z -table, Poisson table

d.

Question does not provide sufficient data or is vague

Question number: 11

» Statistical Inference and Hypothesis Testing » Confidence Interval Estimation

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A confidence interval for of the Normal distribution, when is unknown is given by

Choices

Choice (4)Response

a.

b.

c.

d.

None of the above

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