these puzzle solving times. Should the minimum and maximum data values be denoted as outliers in the boxplot? Minimum Q, Median Q, Maximum Mean Standard deviation 21.5 39 45 51.5 71 40.7 8.4

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8. A researcher studying problem solving is interested in
examining how long (in minutes) it takes individuals to
solve a particular type of puzzle. Below is a table of
summary statistics that were computed based on the puzzle
solving times from a large sample of individuals. The
researcher ultimately wants to create a boxplot based on
these puzzle solving times. Should the minimum and
maximum data values be denoted as outliers in the boxplot?
Minimum Q, Median Q, Maximum Mean Standard deviation
21.5
39
45
51.5
71
40.7
8.4
A. The minimum should be denoted as an outlier, but not
the maximum.
B. The maximum should be denoted as an outlier, but not
the minimum.
C. Both the minimum and maximum should be denoted
as outliers.
D. Neither the minimum nor maximum should be
denoted as outliers.
E. There is not enough information present in order to
determine if either the minimum or the maximum
should be denoted as outliers.
Transcribed Image Text:8. A researcher studying problem solving is interested in examining how long (in minutes) it takes individuals to solve a particular type of puzzle. Below is a table of summary statistics that were computed based on the puzzle solving times from a large sample of individuals. The researcher ultimately wants to create a boxplot based on these puzzle solving times. Should the minimum and maximum data values be denoted as outliers in the boxplot? Minimum Q, Median Q, Maximum Mean Standard deviation 21.5 39 45 51.5 71 40.7 8.4 A. The minimum should be denoted as an outlier, but not the maximum. B. The maximum should be denoted as an outlier, but not the minimum. C. Both the minimum and maximum should be denoted as outliers. D. Neither the minimum nor maximum should be denoted as outliers. E. There is not enough information present in order to determine if either the minimum or the maximum should be denoted as outliers.
Expert Solution
Step 1

The summary of data is given by

Minimum = 21.5

Q1 = 39

Median = 45

Q3 = 51.5

Maximum = 71,

Then inter-quartile range IQR is

IQR = Q3 - Q1 = 51.5 - 39 = 12.5

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