Question: According to the National Health and Nutrition Examination Survey and the Epidemiologic Follow-Up Study, the mean systolic blood pressure for individuals aged 25 to 59 is 127.3 with a standard deviation of 20.2. A sample measurement of systolic blood pressure from 15 students is taken to learn whether students have blood pressure that differs from the national average.

1. Perform a one sample Z test on these data to learn whether a difference in blood pressure exists (present calculated Z test value); write a brief conclusion about your finding.
2. Construct a 95% confidence interval about the sample mean for these data.

Sample Systolic Blood Pressure

133 156 111

145 129 139

121 195 132

109 161 153

95 131 125

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Solution: The downloadable solution consists of 2 pages
Deliverable: Word Document