
Check the following data set for outliers. 73, 82, 84, 84, 86, 87, 89, 91
Solution:
73 is an outlier:
Explanation:
Any value below
Q1-1.5IQR
and any value above
Q3 +1.5 IQR is an outlier
where Q1 is first quartile and Q3 is third quartile and IQ=interquartile range=Q3-Q1
The first quartile of the data set is 83.
Explanation
The first quartile (or lower quartile or 25th percentile) is the median of the bottom half of the numbers. So, to find the first quartile, we need to place the numbers in value order and find the bottom half.
73 82 84 84 86 87 89 91
So, the bottom half is
73 82 84 84
The median of these numbers is 83.
So first quartile=83
The third quartile of the data set is 88.
Explanation
The third quartile (or upper quartile or 75th percentile) is the median of the upper half of the numbers. So, to find the third quartile, we need to place the numbers in value order and find the upper half.
73 82 84 84 86 87 89 91
So, the upper half is
86 87 89 91
The median of these numbers is 88.
So third quartile is 88
he interquartile range of the data set is 5.
Explanation
The interquartile range is the difference between the third and first quartiles.
The third quartile is 88.
The first quartile is 83.
The interquartile range = 88 - 83 = 5.
lower fence=Q1-1.5(IQR)=83-1.5*5=75.5
upper fence=Q3+1.5(IQR)=88+1.5*5=95.5
73 is an outlier since 73<75.5(lower fence)
Check the following data set for outliers. 73, 82, 84, 84, 86, 87, 89, 91
Pitcher 1
Pitcher 2
87
82
86
92
82
70
84
96
83
89
81
84
85
84
93
80
86
81
85
89
84
86
92
72
83
77
84
87
80
89
87
93
88
78
87
81
79
82
82
87
82
81
87
84
80
88
88
93
90
80
85
79
86
87
87
74
86
78
85
80
85
83
88
79
84
95
83
81
88
89
87
91
94
93
83
91...
weight of 30 people:
81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96,
97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109,
110
screenshot of matlab is needed, please and thank you
Create your own data that represents the weight of 30 people.Test the null hypothesis that the data comes from a normal distribution with mean mu = 70 and standard deviation sigma = 8. Hint: use the “ztest"...
PLEASE SHOW ME HOW TO DO THIS....
For
the Excel Data Set please find and report for Test 1 and Test 2 the
Mean, SD, and the tolerance levels for both for which there would
be any outliers (i.e., the value for which a score must be less
than to be consider an outlier and the value for which a number
must greater than to be considered an outlier.
See picture
Performance Data Group 1 1 1 1 Test 2...
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Following are the weights of 32 college students (in kg). 56 73 75 49 82 68 72 91 93 78 63 88 82 75 84 73 67 68 79 91 82 76 80 67 79 80 91 86 90 67 82 75 Construct a 95% confidence interval estimate of the population standard deviation. Round your final answer to one decimal place, and write in interval notation.
Questions 85 through 91: 85. 86. 87. 88 89. 90. 91. a broken bone heals a child is given a measles vaccine you had mumps as a child newborn gets antibodies from breast milk antibodies cross placenta and protect fetus you are given anti rabies antitoxin a woman is given anti Rh antibody A. active natural immunity B. active artificial immunity C. passive natural immunity D. passive artificial immunity E. none of the above Questions 92 through 97 92. 93....
Chapter 13 Data Set 3 contains the average sales for five stores
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Figure 13.3 Data for a Single-Factor Analysis of Variance A C Group 1 Group 2 Group 3 (5 hours) (10 Hours) (20 Hours) 1 87 87 89 3 86 85 91 76 99 96 56 85 87 78 79 89 7 98 81 90 77 82 89 66 78 96 10 75 85 96 11 67...
A. Make a stem-and-leaf display for the following data. Comment about the shape of the distribution. 58 52 68 86 72 66 97 89 84 91 91 92 66 68 87 86 73 61 70 75 72 73 85 84 90 57 77 76 84 93 58 47 B. Construct a frequency distribution using 6 classes with the first lower class limit of 58, draw a Histogram, and what is the shape of distribution? 58, 60, 62, 63, 70, 71, 71, 76,...
Boats (tens of
thousands) Manatees
66 55
65 38
69 34
67 49
74 42
75 59
78 53
84 69
81 82
87 79
90 81
94 93
92 74
98 67
99 78
102 91
100 73
98 91
97 97
93 82
88 89
87 80
90 71
92 68
idrresponding numbe o ms for 880.000 registered Use the accompanying paired data consisting of registered boats (tens of thousands) and manatee fatalities from boat encounters. Let x...
89
67
84
74
58
51
63
68
84
65
57
76
58
75
72
67
64
74
95
53
77
86
90
80
70
67
76
62
91
70
63
78
49
61
77
57
83
67
107
67
80
73
94
80
73
74
67
72
68
79
73
121
63
77
70
61
75
66
79
54
76
86
84
72
65
75
63
91
72
64
99
81
58
70
58
58
90
66
64
80...