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Chapter 1: Q 108. (page 77)

Healthy fast food? Refer to Exercises 102 and 106. Identify any outliers in the distribution. Show your work.

Short Answer

Expert verified

There are no outliers.

Step by step solution

01

Step 1. Given information.

The data value of the given dot-plot are from exercise 102:

8, 12, 15, 17, 21, 22, 26, 27, 27, 29, 31, 40

From exercise 106 we know that the values of the first quarter and third quarter are 16 and 28 respectively.

And the interquartile range is 12.

02

Step 3. Identify any outliers in the distribution.

Observations that are more than 1.5 times the IQR that are third-quarter above or below the first quarter are considered outliers.

Q3+1.5IQR=28+1.512=46Q1-1.5IQR=16-1.512=-2

Because all of the data values are within -2and46, there are no outliers.

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