Researchers from the university of colorado, the university of texas, and florida state university determined that twenty-year-olds who attend church at least once a week for a lifetime live on the average seven years longer than twenty-year-olds who never attend. the data came from a 1987 national health interview survey that asked 28,000 people their income, age, church-attendance patterns, and other questions. the research focused on 2,000 of those surveyed who subsequently died between 1987 and 1995 (excerpted from b. moore & r. parker, critical thinking 7th ed.)
1.) how many causal hypotheses can you generate to explain these findings? explain2.) what data would you need to have confidence in each hypothesis?