Use all of the heart rate data (beats per minute) in table above to answer the following questions. Heart rate data can be treated as being from a normal distribution.
=NORMDIST(x,μ,σ,1)
=NORMINV(p,μ,σ,)
n = __________ Calculate the sample size n
x = __________
Calculate the sample mean x
sx = __________ Calculate the sample standard deviation sx.
μ = __________
Determine the point estimate for the population mean μ.
σ = __________
Determine the point estimate for the population standard deviation σ.
p(x ≤ 72) = __________ The average human heart rate is often quoted as being 72 bpm. Based on the normal distribution, what is the probability a heart rate is 72 or less?
p(x ≤ 58) = __________ During class I measured my heart rate to be 58 bpm. Based on the normal distribution, what is the probability a student heart rate is 58 or less?
p(58 ≤ x ≤ 72) = __________ What is the probability that a student heart rate is between 58 and 72?
p(x ≤ __________ ) = 0.20 Determine the heart rate below which are found the lowest 20% of the heart rates.
p(x ≥ __________ ) = 0.20 Determine the heart rate above which are found the highest 20% of the heart rates.