A Random Sample of Size 100 Is Drawn from a Population

question 77

Multiple Choice

A random sample of size 100 is drawn from a population with a standard deviation of 10.If only 5% of the time a sample mean greater than 20 is obtained,the mean of the population is ______

• A) 18.35
• B) 16.25
• C) 17.2
• D) 20
• E) 19

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Definitions:

Gatekeeper

One who regulates access to someone or something; in insurance, a primary care physician who coordinates the patient’s referral to specialists and hospital admissions.

Primary Care Physician

A Primary Care Physician (PCP) is a healthcare provider who offers general medical treatment and who is typically the first point of consultation for patients.

HMO

Health Maintenance Organization; a type of health insurance plan that typically requires members to receive healthcare services from a network of designated providers.

CMS-1500s

Standardized forms used in the United States to submit Medicare and Medicaid claims and certain other types of insurance claims by healthcare providers.