1. Write a short report dicussing the claim that average diastolic blood pressure in 1958 (variable dbp58) is the same for men who were alive in 1968 and for men who were not (variable vital10).
2. There is one man with a diastolic blood pressure of 160 mm HG. How does your conclusion change? What can you conclude about the effect of outliers on the results of a t test?
3. Test the null hypothesis that average diastolic blood pressure is the same for men who smoke and for men who don't smoke. Write a paragraph summarizing your conclusions. Be sure to consider the effect of the outlier on the results.