Question: You are working for a company that is developing a new device to help reduce hypertension ( high blood pressure ) . The primary measurement

You are working for a company that is developing a new device to help reduce hypertension
(high blood pressure). The primary measurement is systolic pressure. Group 1 has an average
systolic pressure of 146 mmHg with a standard deviation of 32 mmHg and Group 2 has an
average systolic pressure of 120 mmHg. You want a 1:1 enrollment. Assume your type 1 error is
5% and you want a 90% powered study. How many participants should you have in each group
and how many total participants.

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