Answer: t=-5.651
Explanation:
Let 
be the population mean number of hours a week answering their email.
As per given we have
Sample size : n= 783
Sample mean : 
Sample standard deviation: s=7.23
Since population standard deviation is unknown, so our test -statistic has a t-distribution.
Test statistic : 
∴ The test statistic : t=-5.651
Answer: Muscle tone
Explanation: Muscle tone is actually a muscle tension. This tension (muscle tone) maintains the body in its position as it is, or in a particular desired position. Or, for example, during movement, when the body changes its position, these changes of position are regulated by muscle tone. When the body is at rest, some muscle tension exists, and depending on the general fitness of the body, that tension under the skin is more visible or less visible, that is, my muscles will be tighter or floppy.
The answer is: The economic principle of comparative advantage.
Answer:
True
Explanation:
Before doing a study or conducting a research study with human research participant, it is important for an institutionally designated authority or a body authorized to make decisions to determine whether the proposed study made on the human participant comes under the regulatory requirement or not.
There are several restrictions and laws to be followed when such research studies are made. Therefore it is important for the investigator as well as the institutionally designated authority to check whether such studies comes under the exemption from the regulatory requirements or not.
Hence the answer is true.
Answer:
The correct one is the definition of <u>community psychology</u>.
Explanation:
Community psychology studies how the environment affects individual and community functioning, that is, how the interdependence and interaction of individuals and groups with social, historical, cultural (and other) contexts influence social health. The purpose of community psychology is to prevent dysfunction while promoting wellness, empowerment and social justice. As we can see, this is the same as saying, "Community psychology aims to create healthy social and physical environments." Therefore, the definition of community psychology is correct.
On the other hand, the definition "Health psychology investigates how people grow and change across the life span" is incorrect. Health psychology is basically the study of how psychological, biological, cultural, and behavioral aspects influence health and illness.
