When the blood pressure is measured two numbers are recorded.
The higher of the two numbers is the measure of the systolic pressure, which is the pressure on the blood vessels when the heart beats.
The systolic pressure of teenagers, in millimeters of Mercury (mmHg), is normally with mean μ and variance 32
The mean systolic pressure of a random sample of 40 teenagers is 105 mmHg
a) Conduct a 99% confidence Intervals for μ
b) it is claimed that teenagers have a mean systolic pressure of 104 mmHg
Use your answer to part A to comment on this claim
I really struggle with this so it be so helpful if someone could go through it