Random Samples Were Selected from Three Populations

question 134

Essay

Random samples were selected from three populations. The data obtained are shown below. Please note that the sample sizes are not equal.

a.Compute the overall mean.
b.At 95% confidence using the critical value and p-value approach, test to see if there is a significant difference among the means.

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Definitions:

STIs

Infections transmitted through sexual contact, known as sexually transmitted infections.

Abstinence-Only

An educational or personal approach focusing exclusively on abstaining from sexual activity, often until marriage.

Sexual Debut

Penile-vaginal or anal intercourse that occurs for the first time in a person’s life; it is often considered a milestone for many adolescents.

Spermarche

The beginning of development of sperm in males’ testicles at puberty, marking the onset of male reproductive capability.