4. Do smokers have higher blood pressure? A random sample of twenty-eight smokers was obtained and their systolic blood pressure was obtained. Another random sample of thirty non-smokers was obtained and their systolic blood pressure was obtained. Smokers Blood Pressure Nonsmokers Blood Pressure 127 134 143 106 116 130 141 135 138 118 121 126 129 137 130 123 118 117 136 135 129 117 118 125 144 138 131 122 112 115 128 136 140 117 111 127 131 133 140 118 128 116 137 133 133 124 119 116 139 131 139 126 116 114 我们已 136 125 109 113
4. Do smokers have higher blood pressure? A random sample of twenty-eight smokers was obtained and their systolic blood pressure was obtained. Another random sample of thirty non-smokers was obtained and their systolic blood pressure was obtained. Smokers Blood Pressure Nonsmokers Blood Pressure 127 134 143 106 116 130 141 135 138 118 121 126 129 137 130 123 118 117 136 135 129 117 118 125 144 138 131 122 112 115 128 136 140 117 111 127 131 133 140 118 128 116 137 133 133 124 119 116 139 131 139 126 116 114 我们已 136 125 109 113
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
Related questions
Concept explainers
Contingency Table
A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.
Binomial Distribution
Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.
Topic Video
Question
7.2.4
Transcribed Image Text:4. Do smokers have higher blood pressure? A random sample of twenty-eight smokers was obtained
and their systolic blood pressure was obtained. Another random sample of thirty non-smokers was
obtained and their systolic blood pressure was obtained.
Smokers Blood Pressure
Nonsmokers Blood Pressure
127
134
143
106
116
130
141
135
138
118
121
126
129
137
130
123
118
117
136
135
129
117
118
125
144
138
131
122
112
115
128
136
140
117
111
127
131
133
140
118
128
116
137
133
133
124
119
116
139
131
139
126
116
114
我们已
136
125
109
113
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