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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 t_crit?

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 t_crit?

Group of answer choices

Not enough information given

2.1

1.83

2.4

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