Random Samples of Size 49 Are Taken from a Population

question 53

Multiple Choice

Random samples of size 49 are taken from a population that has 200 elements, a mean of 180, and a variance of 196. The distribution of the population is unknown. The mean and the standard error of the distribution of sample means are _____.

• A) 180 and 24.39
• B) 180 and 28
• C) 180 and 1.74
• D) 180 and 2

---

Definitions:

Public Transit

Systems of publicly accessible transportation services intended for general public use, such as buses, trains, and subways.

Antianxiety Drugs

Medications prescribed to alleviate symptoms of anxiety and panic disorders.

Drowsiness

A state of feeling unusually sleepy or tired, often leading to a reduced level of alertness and performance.

Biomedical Therapies

A group of treatments for mental health disorders that involve physiological interventions (such as medication, surgical procedures, or electroconvulsive therapy) to treat symptoms directly related to biological processes.