Systolic blood pressure is the amount of pressure that blood exerts on blood vessels while the heart is beating. The mean systolic blood pressure for people in the United States is reported to be 122 millimeters of mercury (mmHg) with a standard deviation of 15 mmHg. The wellness department of a large corporation is investigating whether the mean systolic blood pressure of its employees is greater than the reported national mean. A random sample of 100 employees will be selected, the systolic blood pressure of each employee in the sample will be measured, and the sample mean will be calculated. Let u represent the mean systolic blood pressure of all employees at the corporation. Consider the following hypotheses. Ho: 4 = 122 Ha: 4 > 122 The mean systolic blood pressure of the employees sampled was 125 mmHg.
Problem 2
Systolic blood pressure is the amount of pressure that blood exerts on blood vessels while the heart is beating.
The
(mmHg) with a standard deviation of 15 mmHg.
The wellness department of a large corporation is investigating whether the mean systolic blood pressure of
its employees is greater than the reported national mean. A random sample of 100 employees will be selected,
the systolic blood pressure of each employee in the sample will be measured, and the sample mean will be
calculated.
Let u represent the mean systolic blood pressure of all employees at the corporation. Consider the following
hypotheses.
Ho: 4 = 122
Ha: 4 > 122
The mean systolic blood pressure of the employees sampled was 125 mmHg.
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