Most engaged couples expect or at least hope that they will have high levels of marital satisfaction. However, because 54% of first marriages end in divorce, social scientists have begun investigating influences on marital satisfaction. [Data source: This data was obtained from the National Center for Health Statistics. A social psychologist sets out to look at the role Of having children in relationship longevity. He decides to measure marital satisfaction in a group Of couples with children and a group Of childless couples. He chooses the Marital Satisfaction Inventory, because it refers to "partner" and "relationship" rather than "spouse" and "marriage," which makes it useful for research with both traditional and nontraditional couples. Higher scores on the Marital Satisfaction Inventory indicate greater satisfaction. Assume that these scores are normally distributed. A sample of 39 couples with children scored an average of 51.1 with a sample standard deviation of 9.2 on the Marital Satisfaction Inventory. A sample of 31 childless couples scored an average of 45.2 with a sample standard
deviation of 12.1.

Suppose you intend to conduct a hypothesis test on the difference in population means. In preparation, you call the sample Of couples with children sample 1 and the sample of childless couples sample 2. Organize the provided data by completing the following table:

Sample 1
n1 =
μ1=
M1=
Ï1=
s1=

Sample 2
n1 =
μ1=
M1=
Ï1=
s1=