A) what is the probability of randomly selecting a sample of 36 people whose mea

Question

A) what is the probability of randomly selecting a sample of 36 people whose mean systolic blood pressure would be greater than 134.0 mm Hg? Question #6 (18 marks) The systolic blood pressure (SBP) of a population of smokers is assumed to be n distributed with a mean of 129.2 mm Hg (millimetres of mercury) and a standard deviation of 12.0 mmHg. Smoking is thought to increase blood pressure. In order to verify this, a small sample of eight smokers were randomly selected from this population and their systolic blood pressures were as follows: 12 SBP (mmHg) 133 (34 115- 1q 142-114 140-12 145-4 1131321 160-1 2Lo 30 te 30 12i 44 / (o 16 6 Sum 1,072 0 Ig 00

Explanation / Answer

A) what is the probability of randomly selecting a sample of 36 people whose mean systolic blood pressure would be greater than 134.0 mm Hg?

P( z > 134 - 129.2 / [ 12 / srqt(36) ])

P( z >4.8 / 2 )

P( z > 2.4) = 0.00820

for the other question

you should post it in a new question

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.