Simple Random Sampling Has Been Used to Obtain a Sample

question 41

Essay

Simple random sampling has been used to obtain a sample of 81 elements from a population of size 500. The sample mean is 120, and the sample standard deviation is determined to be 36.
a.Estimate the standard error of the mean.
b.Develop an approximate 95% confidence interval for the population mean.
c.Estimate the population total.
d.Develop an approximate 95% confidence interval for the population total.

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Definitions:

Lost Erection

A situation in which a male experiences the inability to maintain an erection sufficient for satisfactory sexual performance, which can be a symptom of psychological or physical issues.

Sexual Activity

Engaging in actions or behaviors that are related to sex or sexual pleasure.

Homosexuality

A sexual orientation characterized by an emotional, romantic, or sexual attraction to individuals of the same gender.

Environmental Factors

External factors, including physical, chemical, and biological factors, that can influence an organism's growth, development, and survival.