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Mathematics, 10.05.2021 21:00 SmokeyRN

A fitness instructor wants to see if yoga reduces systolic blood pressure (mmHg). A group of 20 volunteers agree to have their blood pressure taken before and after an hour-long
yoga session. All assumptions were confirmed.
The volunteers had an average change in blood pressure (after - before) of -15.67
mmHg, with a standard deviation of 4.98 mmHg. What is the absolute value of the test
statistic for this analysis? Round to 2 decimal places.

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Answers: 2

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