1. 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 127 134 143 106 116 130 141 135 138 118 121 126 129 137 130 123 118 117 136 135 129 117 118 125 144 138 131 122 112 115 128 136 140 117 111 127 131 140 118 128 116 137 133 133 124 119 116 139 131 139 126 116 114 136 12up125 109 113 ST a. At the 5% significance level, what conclusion can be reached?
1. 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 127 134 143 106 116 130 141 135 138 118 121 126 129 137 130 123 118 117 136 135 129 117 118 125 144 138 131 122 112 115 128 136 140 117 111 127 131 140 118 128 116 137 133 133 124 119 116 139 131 139 126 116 114 136 12up125 109 113 ST a. At the 5% significance level, what conclusion can be reached?
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 1GP
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1. 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
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141
135
138
118
121
126
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137
130
123
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135
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138
131
122
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115
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140
117
111
127
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131
140
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124
119
116
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126
116
114
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109
113
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a. At the 5% significance level, what conclusion can be reached?
b. Is there a possible confounding factor that was not controlled for in the experiment?
of thirty females with a college degree and for a random
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