Stanford University conducted a study of whether running is healthy for men and women over age 50. During the first eight years of the study, 1.5% of the 451 members of the 50-Plus Fitness Association died. We are interested in the proportion of people over 50 who ran and died in the same eight-year period.

Part a) Construct a 95% confidence interval for the population proportion of people over 50 who ran and died in the same eight–year period.

Part B) Explain in a complete sentence what the confidence interval means.