Answer:
Conduct a second survey
Explanation:
Mean age is the average age in a particular group of people. It is used in statistics to compare a group of people with another one.
The purpose of the mentioned survey was to compare the level of relationship satisfaction between married and non-married couples. For the survey to be valid, the average (mean) age in these two groups should be the same. People behave differently at different stages in their lives, some may be satisfied with their relationship at 23 and dissatisfied at 30. The age gap between the two groups here is to great to reach any plausible conclusions. You should conduct a second survey with the same or similar age groups.
The strongest predictor of task performance in a workplace would be the Spatial Intelligence. Spatial Intelligence is one of the area of multiple intelligence dealing with the spatial judgement that provides the ability to fix problems and would create products that have value in a specific culture.
Answer:
it had a Mesopotamian trade network
Explanation: