Suppose that systolic blood pressure for 35- to 44-year-olds is normally distributed with mean 125 in...
Suppose that systolic blood pressure for 35- to 44-year-olds is normally distributed with mean 125 in mm Hg and standard deviation 10 in mm Hg. Provide the interval for which 95% of the data will fall between.
Homework Answers
μ = 125
σ = 10
Z value for 95% interval = Z0.025 = 1.96
upper limit of the interval = μ + 1.96 * σ = 125 + 1.96 * 10 = 144.6
lower limit of the interval = μ - 1.96 * σ = 125 - 1.96 * 10 = 105.4
The interval will fall between (105.4 , 144.6)
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