Question

# Open Three Hospitals data. SETUP: It is believed that the number of injuries recorded in hospital...

Open Three Hospitals data. SETUP: It is believed that the number of injuries recorded in hospital 1 is different from the number of injuries recorded in hospital 2. Given the data your job is to confirm or disprove this assertion.

10. What test/procedure did you perform? (4 points)

• a. Regression
• b. Two sided t-test
• c. One sided t-test
• d. Confidence Interval

11. What is the statistical interpretation? (4 points)

• a. Average of data is inconsistent with the claim
• b. P-value is too large to have a conclusive answer
• c. P-value is smaller than 5% thus we are confident to say that the slope is not zero.
• d. P-value is smaller than 5% thus we are confident that the averages are different.
• e. None of these.

12. What is the conclusion? (4 points)

• a. We cannot claim that the number of injuries recorded in hospital 1 is different from the number of injuries recorded in hospital 2.
• b. We can claim that that the number of injuries recorded in hospital 1 is different from the number of injuries recorded in hospital 2.
• c. None of these.
 Hospital Accidents Injuries 3 161 216 2 146 157 2 116 131 3 164 222 2 133 159 3 156 187 2 121 126 2 139 167 3 173 214 3 147 162 2 127 132 3 173 211 2 137 139 1 84 134 3 166 197 3 168 193 2 131 154 1 90 93 3 182 231 3 168 197 2 152 205 3 170 236 2 114 125 1 96 108 1 92 126 1 82 109 1 81 61 3 169 192 3 161 175 2 127 166 2 128 112 3 180 202 3 172 231 1 93 60 3 169 205 3 167 181 3 162 184 3 157 197 1 93 113 2 130 147 3 159 181 2 123 119 2 124 156 2 136 189 2 124 127 1 74 78 3 157 164 1 94 81 2 136 154 2 145 158 2 137 151 1 98 109 3 194 227 2 133 140 3 174 162 3 169 200 2 122 93 3 148 161 1 87 59 1 91 69 1 89 97 3 155 166 3 172 212 2 126 124 3 168 186 2 126 143 3 174 198 3 163 183 1 80 100 2 140 156 3 180 205 3 164 198 2 129 158 3 162 199 3 174 201 2 130 156 1 102 98 3 169 208 2 141 183 3 164 200 2 126 161 3 165 207 1 97 141 1 89 103 3 161 159 2 125 192 3 168 222 3 172 203 1 92 88 2 125 136 2 119 139 3 173 205 1 90 107 1 105 124 2 143 148 2 125 160 1 90 101 1 91 55 2 127 121 2 123 163 3 184 255 2 148 147 1 90 72 1 91 81 1 91 61 3 162 170 1 91 109 1 58 72 3 148 173 1 70 77 1 93 88 1 96 97 1 79 68 2 129 160 2 124 152 2 130 152 1 92 103 3 176 222 2 123 166 3 170 204 2 135 170 1 78 88 3 161 183 2 114 123 2 132 119 3 167 193 3 174 213 2 138 153 2 125 150 2 129 149 1 79 20 1 95 100 1 85 90 2 127 162 1 94 123 2 120 117 2 138 176 2 136 149 1 94 95 2 118 128 3 182 199 2 125 141 3 159 158 2 130 140 3 170 198 1 84 75 1 87 128 1 96 108 3 167 162 1 101 126 3 169 170 3 155 169 2 135 157 3 182 210 1 96 120 2 133 123 1 101 97 2 131 140 2 112 113 3 183 197 3 169 171 2 116 129 2 126 160 1 88 108 2 123 159 3 175 164 1 89 66 2 134 158 2 117 125 3 165 211 1 81 120 3 179 188 3 156 193 2 123 146 3 193 197 3 153 183 1 84 93 1 92 98 1 102 140 3 166 225 2 120 119 3 183 192 1 113 176 1 88 115 1 62 57 3 166 194 2 120 120 1 97 131 2 145 215 3 169 204 2 143 190 1 89 93 3 170 178 1 70 81 2 135 147 2 135 131 2 125 152 1 97 99 1 101 84 1 77 115 3 185 214 3 170 221 1 111 101 3 153 180 2 133 138 3 180 238 2 115 105 3 163 155 3 174 163 1 89 103 3 182 222 1 99 97 2 135 153 1 101 128 2 130 163 1 97 85 2 126 138 2 106 123 3 179 206 3 172 169 1 84 91 3 180 202 2 141 194 3 143 191 3 173 184 2 114 121 1 91 59 1 76 60 1 95 70 2 124 179 1 73 48 3 169 177 2 131 177 3 191 223 3 181 181 1 93 89 3 162 173 2 123 168 3 164 203 3 176 210 3 155 232 3 177 167 1 90 79 3 171 196 2 129 118 2 112 127 2 136 112 3 162 190 1 82 83 1 95 133 3 164 231 2 133 147 3 182 222 3 175 243 2 130 148 2 136 130 3 166 224 1 104 93 2 141 196 2 133 147 2 133 151 2 128 145 1 88 68 2 114 68 2 130 169 2 151 177 2 145 191 3 167 196 2 124 141 3 174 179 3 165 203 2 121 148 2 124 122 2 136 163 3 166 209 1 94 101 3 169 244 2 129 139 1 90 93 1 96 92 1 93 99 2 130 104 2 102 93 3 179 200 3 176 249 2 103 118 1 93 117 1 83 74 3 175 210 1 85 112 3 173 217 2 123 123 1 95 80 2 142 180 3 164 209 3 175 207 1 93 108 1 89 79 2 142 155 3 183 222

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