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Chapter 7: Q2 (page 347)

Bootstrap Sample.

Here is a random sample of taxi-out times (min) for American Airlines flights leaving JFK airport: 12, 19, 13, 43, 15. For this sample, what is a bootstrap sample?

Short Answer

Expert verified

One of the bootstrap samples for data taxi-out times (min) American Airlines flights leaving JFK airport is 43, 19, 13, 19, and 43.

Step by step solution

01

Given information

For the American Airlines flights leaving JFK airport, the sample of taxi-out times (min) is taken is given as:

12, 19, 13, 43, 15

02

Describe the concept of the bootstrap sample

Bootstrapping is a type of resampling method where large numbers of smaller samples of the same size are repeatedly drawn with replacement from a single original sample.

The sample size of the bootstrap sample needs to be the same as the sample size of the original data set taken with replacement.

03

Create a bootstrap sample

The method of bootstrapping gives a bunch of strap samples. One of them could be 43, 19, 13, 19, and 43.

This is a bootstrap sample because one has the same number of values as the original data set to this is a random sample taken from with replacement from the original data set.

Therefore, the bootstrap sample for given data is 43, 19, 13, 19, and 43.

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