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What is the value of t crit ? Suppose a new drug is intended to improve walking distance in patients with Parkinson's Disease. A researcher
What is the value of tcrit ?
Suppose a new drug is intended to improve walking distance in patients with Parkinson's Disease. A researcher measures patients' walking distance in feet before and after trying the drug for 9 weeks.
| ID | Pre | Post |
| 1 | 40 | 100 |
| 2 | 30 | 140 |
| 3 | 50 | 80 |
| 4 | 65 | 80 |
| 5 | 15 | 100 |
What is the value of tcrit ?
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2.1
1.83
2.4
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