6. A researcher wanted to find the effect of a special diet on systolic blood pressures. She selected a sample of seven adults and put them on this dietary plan for 3 months. The following table gives the systolic blood pressures of these seven adults before and after completing the plan. Test the claim that the systolic blood pressure is lower after completing the dietary plan. Before 210 180 195 220 231 199 224 220 183 233 After 193 | 186 186 223

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6. A researcher wanted to find the effect of a special diet on systolic blood pressures. She selected a
sample of seven adults and put them on this dietary plan for 3 months. The following table gives
the systolic blood pressures of these seven adults before and after completing the plan. Test the
claim that the systolic blood pressure is lower after completing the dietary plan.
Before 210 180 195 220
231 199 224
220 183 233
After
193 |
186 186 223
Transcribed Image Text:6. A researcher wanted to find the effect of a special diet on systolic blood pressures. She selected a sample of seven adults and put them on this dietary plan for 3 months. The following table gives the systolic blood pressures of these seven adults before and after completing the plan. Test the claim that the systolic blood pressure is lower after completing the dietary plan. Before 210 180 195 220 231 199 224 220 183 233 After 193 | 186 186 223
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