A Researcher Conducted a Study to See If There Are

question 20

Multiple Choice

A researcher conducted a study to see if there are differences in mean prostate-specific antigen (PSA) levels between men aged >50 years (μ₁) and men aged 50 years (μ₂) . The researcher hypothesizes that there will be a difference in mean PSA between the two groups. We are assuming that PSA levels have a symmetric distribution. The 95% confidence interval for the difference in mean PSA between age groups was (0.2, 6.0) . What can you conclude from this confidence interval?

• A) We are 95% confident that the estimated mean PSA level for men aged years is 0.2 and for men >50 years is 6.0.
• B) We are 95% confident that mean PSA levels between the two groups are the same.
• C) We are 95% confident that the mean PSA levels between the two groups are different.
• D) We do not have enough information to form a conclusion.

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Definitions:

Female Hormones

Biochemical substances, such as estrogen and progesterone, that play crucial roles in the reproductive and physiological functions of females.

Estrogen Problems

Refers to health issues that arise from either an excess or deficiency of estrogen, affecting both men and women in various ways.

Vaginal Lubrication

The natural process by which the vagina produces a fluid to reduce friction during sexual activity.

Substance-Induced Sexual

Sexual dysfunction or changes in sexual behavior that occur as a direct consequence of substance use or misuse.