Question

mean 94.6129 standard devition is 45 q1 is 67 q3 is 138 data set 10 19...

mean 94.6129
standard devition is 45
q1 is 67
q3 is 138


data set
10
19
35
39
41
56
67
67
69
73
75
78
81
82
83
83
84
91
92
94
123
125
137
138
140
142
150
152
161
163
183

a) for q1 and q3 give the position of each in the list-use the TI method
b) scores required for both mild and extreme outliers- indicate if there are any

Homework Answers

Answer #1

a)

Data_Set Positions of quartile

10

19

35

39

41

56

67

67 q1

67

69

73

75

78

81

82

83

83

84

91

92

94

123

125

137

138

q3

140

142

150

152

161

163

183

b)

Interquartile range (IQR)=q3-q1= 71

Lower whisker=q1-1.5*IQR=67-1.5*71=-39.5

Upper whisker=q3+1.5*IQR=244.5

In this data set, all the values fall within the lower and upper whisker. Hence, scores do not indicate any mild and extreme outliers.

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