Question

According to the National Center for Health Statistics, the mean systolic blood pressure for males 35 to 44 years of age is 128. The health director of a large company wonders if this national average holds for the company's middle-aged male employees. The director examines the medical records of a random sample of 72 male employees in this age group and records each of their systolic blood pressure readings. State an appropriate pair of hypotheses for a significance test in this setting. Be sure to define the parameter of interest. Check conditions for performing the test in Question 1. A 95% confidence interval for the mean systolic blood pressure of all 35- to 44-year-old employees at this company is (126.43, 133.43). Based on this interval, what conclusion would you make for a test of the hypotheses in Question 1 at the α = 0.05 significance level?

          According to the National Center for Health Statistics, the mean
systolic blood pressure for males 35 to 44 years of age is
128.  The health director of a large company wonders if this
national average holds for the company's middle-aged male
employees.  The director examines the medical records of a
random sample of 72 male employees in this age group and records
each of their systolic blood pressure readings.
State an appropriate pair of hypotheses for a
significance test in this setting.  Be sure to define the
parameter of interest.
Check conditions for performing the test in Question
1.
A 95% confidence interval for the mean systolic blood
pressure of all 35- to 44-year-old employees at this company is
(126.43, 133.43).  Based on this interval, what conclusion
would you make for a test of the hypotheses in Question 1 at the
α = 0.05 significance level?

Added by Kathryn S.

Question

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