The medical director of a large company noticed that the blood pressure of its executive managers is unusually high. The medical team wanted to find out whether this is due excessive alcohol drinking. A survey from 105 executives show that, on average, they consume 15.5 units of alcohol per week with standard deviation of 2.7. The department of HHS, limits alcohol drinking to 14 units a week.
Follow the five-step hypothesis testing, decide whether high blood pressure among executive might be due excessive drinking. Please help walk me through these steps.