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:

Population Efficacy

The effectiveness of a treatment or intervention when applied to a broad population under 'real-world' conditions.

Interventions

Actions or processes conducted to modify an outcome or conditions in a study or therapeutic context.

Random Sample

A subset of a statistical population in which each member of the subset has an equal probability of being chosen.

Validity Establishment

The process of demonstrating that an assessment or study measures what it is intended to measure and is applicable for its intended purpose.