Elizabeth Perrine
STAT 200
Guided Exercise 2
1.
a)
Here is the Stem and Leaf plot for each group to compare the distributions.
Stem and Leaf Plot of Actors Winning Academy Award Since 1996
Males
Females
Stem
Leaf
Stem
Leaf
2
9
2
2 5 6 8 9 9
3
2 6 7 8 9
3
0 2 3 3 4 5 5 9
4
0 3 4 5 5 6 7 8
4
4 5
5
0 0 5
5
4
6
0 0
6
1 2
6|0 represents 60
6|0 represents 60
b.
Calculate the measures of central tendency and variability for each group.

c.
Briefly compare the two distributions with an emphasis on the measures of Central Tendency and Variability.

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.
d.
For both men and women there are a few outliers.
For men there are two individuals with a value of 60.
For
women there is one winner aged 61 and another aged 62.
Calculate z-scores for these values and interpret their
meaning.