In recent​ years, there has been a great deal of interest in the ads that appear during a game. These ads vary in length with most lasting 30 seconds or 60 seconds. The accompanying table contains the ad length and ad scores from a recent game.



For the​ 30-second ads and the​ 60-second ads​ separately:

ACompute the​ mean, median, and mode.
BCompute the​ variance, standard​ deviation, range, and coefficient of variation.
CBased on the mean and​ median, are the data​ skewed? If​ so, how?
DBased on the results of​ (a) through​ (c), what conclusions can you reach about the scores of​ 30- and​ 60-second ads?



Company 1

60

6.886.88

Company 2

30

6.656.65

Company 3

30

6.646.64

Company 4

30

6.516.51

Company 5

30

6.266.26

Company 6

30

6.206.20

Company 7

60

6.126.12

Company 8

60

6.086.08

Company 9

60

6.016.01

Company 10

30

5.945.94

Company 11

60

5.735.73

Company 12

60

5.595.59

Company 13

60

5.595.59

Company 14

30

5.595.59

Company 15

30

5.585.58

Company 16

30

5.435.43

Company 17

60

5.415.41

Company 18

30

5.295.29

Company 19

60

5.335.33

Company 20

30

5.255.25

Company 21

30

5.305.30

Company 22

60

5.225.22

Company 23

30

5.205.20

Company 24

30

5.205.20

Company 25

30

5.115.11

Company 26

30

5.125.12

Company 27

60

5.035.03

Company 28

30

5.065.06

Company 29

30

4.904.90

Company 30

30

4.924.92

Company 31

30

4.914.91

Company 32

60

4.834.83

Company 33

30

4.704.70

Company 34

60

4.704.70

Company 35

30

4.694.69

Company 36

30

4.694.69

Company 37

30

4.694.69

Company 38

30

4.604.60

Company 39

30

4.594.59

Company 40

30

4.484.48

Company 41

30

4.464.46

Company 42

30

4.454.45

Company 43

30

4.364.36

Company 44

30

4.364.36

Company 45

30

4.174.17

Company 46

60

4.214.21

Company 47

30

4.164.16

Company 48

30

4.134.13

Company 49

30

4.134.13

Company 50

30

3.923.92

Company 51

30

3.803.80

Company 52

30

3.573.57

Company 53

30

3.573.57

Company 54

30

3.553.55

Company 55

60

3.463.46

Company 56

60

3.303.30

Company 57

60

3.243.24