Most engaged couples expect or at least hope they will have high levels of marital longevity. However, because 54% of first marriages end in divorce, social scientists have begun investigating influences on marital longevity. (Data source: These data were obtained from the National Center for Health Statistics.) Suppose an anthropologist sets out to study the role of race in relationship longevity. He measures relationship longevity in a random sample of African American couples and in a random sample of Latino couples and compares the data. Assume that relationship longevity is normally distributed and that the variance in longevity is approximately the same among African American couples as among Latino couples. Step 1: Do the data meet the test requirements? A. Is there independent random sampling? Yes No B. What is the level of measurement of the variables? Interval-ratio Nominal Ordinal C. Is the sampling distribution normally distributed? No Yes