In a Random Sample of 20 Patients Who Visited the Emergency

question 44

Essay

In a random sample of 20 patients who visited the emergency room of hospital 1, a researcher found that the variance of the waiting time (in minutes) was 128.0. In a random sample of 15 patients in the emergency room of hospital 2, the researcher found the variance to be 178.8.
Can we infer at the 5% level of significance that the population variances differ?

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Definitions:

Gonadotropin-releasing Hormone

A hormone responsible for the release of follicle-stimulating hormone and luteinizing hormone from the anterior pituitary.

Testosterone

A steroid hormone that promotes the development and maintenance of male sex characteristics.

Hormone

A chemical substance produced in the body that controls and regulates the activity of certain cells or organs.

Solubility

The ability of a substance to dissolve in a solvent, resulting in a homogeneous mixture or solution.