Exam 30: The Bootstrap

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A random sample of 50 adult males in Toronto,Ontario were randomly selected and their weight,in kilograms,was recorded to the nearest kilogram.In order to compute a bootstrap confidence interval for the median,200 subsequent bootstrap samples were taken and the resulting sample medians were ordered from lowest to highest.The first 10 and last 10 ordered medians are given below: First 10: 68.0,68.5,69.0,69.0,69.5,70.0,70.0,70.0,70.5,70.5 Last 10: 93.5,94.0,94.0,94.5,94.5,95.0,95.0,95.5,95.5,96.0 Use the percentile method to compute a 95% bootstrap confidence interval for the true median weight of adult males in Toronto,Ontario.

(Multiple Choice)

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Question 21

Consider the following sample of three measurements {4,8,13}.What is the probability of observing the distinct resample {4,8,8}?

(Multiple Choice)

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Question 22

When selecting a bootstrap sample,which of the following statements is true?

(Multiple Choice)

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Question 23

Consider the following sample of three measurements {4,8,13}.What is the probability of observing the distinct resample {8,8,8}?

(Multiple Choice)

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Question 24

A random sample of 50 adult males in Toronto,Ontario were randomly selected and their weight,in kilograms,was recorded to the nearest kilogram.In order to compute a bootstrap confidence interval for the median,400 subsequent bootstrap samples were taken and the resulting sample medians were ordered from lowest to highest.The first 10 and last 10 ordered medians are given below: First 10: 68.0,68.5,68.5,69.0,69.5,70.0,70.0,70.0,70.5,70.5 Last 10: 93.5,94.0,94.0,94.5,94.5,94.5,95.0,95.5,95.5,96.0 Use the percentile method to compute a 98% bootstrap confidence interval for the true median weight of adult males in Toronto,Ontario.

(Multiple Choice)

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Question 25

Consider the following sample of three measurements {4,8,13}.Which of the following distinct resamples is least likely to occur?

(Multiple Choice)

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Question 26

Consider the following sample of four measurements {1,2,3,4}.Which of the following distinct resamples is most likely to occur?

(Multiple Choice)

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Question 27

Showing 21 - 27 of 27

Consider the following sample of three measurements {4,8,13}.What is the probability of observing the distinct resample {4,8,8}?

When selecting a bootstrap sample,which of the following statements is true?

Consider the following sample of three measurements {4,8,13}.What is the probability of observing the distinct resample {8,8,8}?

Consider the following sample of three measurements {4,8,13}.Which of the following distinct resamples is least likely to occur?

Consider the following sample of four measurements {1,2,3,4}.Which of the following distinct resamples is most likely to occur?

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