Question
Draw the histogram for the red band. Does the histogram show a normal distribution? Explain. 128...
- Draw the histogram for the red band. Does the histogram show a
normal distribution? Explain.
128
115
95
89
89
90
129
124
109
94
89
89
128
133
125
102
93
89
129
134
124
101
95
90
130
128
126
112
104
92
128
125
118
108
104
96
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Taxpayer Form 1 Form 2 Form 3 Form 4 1 109 115 126 120 2 98...
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Form 4
1
109
115
126
120
2
98
103
107
108
3
29
27
53
38
4
93
95
103
109
5
62
65
67
64
6
103
107
111
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7
83
82
101
116
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122
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141
143
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92
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105
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107
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111
108
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117
85
108
86
104
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90
116
101
113
116
111
108
112
97
115
86
110
119
87
95
99
116
98
110
115
99
114
100
88
92
106
96
103
108
85
94
96
113
98
108
88
95
96
115
106
93
92
115
101
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Restaurant X
Restaurant Y
85
85
116
116
118
118
146
146
270
270
100
100
124
124
156
156
118
118
176
176
184
184
125
125
154
154
166
166
211
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120, 131, 133, 118, 125, 151, 147, 137, 140, 132, 119, 110, 124,
132, 162, 135, 130, 136, 128
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service times at dinner in seconds at two fast-food restaurants.
Construct a
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service time for Restaurant X at dinner; then do the same for
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Service Times (seconds)
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Restaurant Y
80
80
124
124
118
118
147
147
264
264
102
102
127
127
155
155
112
112
174
174
183
183
119
119
149
149
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Develop a 95 percent confidence interval for the mean number of errors committed (Errors Column) per...
Develop a 95 percent confidence interval for the mean number of
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Errors
79
81
108
92
99
106
101
95
88
90
90
117
124
102
106
107
94
95
68
137
103
114
109
101
89
83
92
88
121
109
Select one:
a. 94.15, 105.05
b. 95.22, 103.98
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d. 95.10, 104.10
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