SOLUTION: Suppose we have a set of blood pressures with a mean of 120 Systolic, and a sample standard deviation of 20 points. Assuming a normal distribution of Systolic blood pressures, bet

Question 476296: Suppose we have a set of blood pressures with a mean of 120 Systolic, and a sample standard deviation of 20 points. Assuming a normal distribution of Systolic blood pressures, between what two values should 95% of all Systolic blood pressures lie?
Thanks
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Suppose we have a set of blood pressures with a mean of 120 Systolic, and a sample standard deviation of 20 points. Assuming a normal distribution of Systolic blood pressures, between what two values should 95% of all Systolic blood pressures lie?
---------------------
Lower limit:
x = -1.96*20+120 = 80.8
---
Upper limit:
x = 1.96*20+120 = 159.2
---------------------------
Cheers,
Stan H.
========
RELATED QUESTIONS
Suppose we have a set of blood pressures with a mean of 120 Systolic, and a sample... (answered by robertb)

Suppose we have a set of blood pressures with a mean of 120 Systolic, and a sample... (answered by ewatrrr)

Suppose we have a set of blood pressures with a mean of 110 Systolic, and a sample... (answered by stanbon)

Suppose we have a set of blood pressures with a mean of 80 Diastolic, and a sample... (answered by stanbon)

Suppose we have a set of blood pressures with a mean of 70 Diastolic, and a sample... (answered by stanbon)

Assume that the distribution of systolic blood pressure of adult men has a mean of 110... (answered by ikleyn)

The systolic blood pressures of 40 women have a mean of 110.8 mm Hg and a standard... (answered by Fombitz)

A study found that the mean systolic blood pressure was 106 mm Hg. Assume that systolic (answered by ewatrrr)

The systolic blood pressures of the patients at a hospital are normally distributed with... (answered by Theo)