Answer:
Weather balloons float at about 24 miles above earths surface, it is also above the ozone layer and is in the middle of the stratosphere
Explanation:Because of constant energy research, it is known as the Energy Capital of the World. Tennessee has more than 3,800 documented caves. Bristol is known as the Birthplace of Country Music. The Great Smoky Mountains National Park is the most visited national park in the United States.
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.
