THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION

question 61

Essay

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
A clinic offers a weight-reduction program.A review of its records revealed the following weight losses,in pounds,for a random sample of 10 of its clients at the conclusion of the program: 20,15,21,28,22,19,9,14,18,and 23.
-Find a point estimate of the population mean and population standard deviation of the weight losses.

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Definitions:

Low Birthweight

Refers to a birth weight of a newborn less than 2,500 grams (5 pounds, 8 ounces), which may be linked to health issues.

Brain Development

The process of growth and change in the brain’s structure, function, and pathways that occurs throughout a person’s life, but is most intense during childhood.

Selective Attrition

The phenomenon where participants drop out of a study over time, potentially leading to biased results if the dropout rate varies among the groups being studied.

Longitudinal Research

involves studies conducted over a lengthy period, allowing researchers to observe developments or changes in the subjects over time.