If We Are Interested in Testing Whether the Mean of Items

question 108

Multiple Choice

If we are interested in testing whether the mean of items in population 1 is significantly smaller than the mean of items in population 2, the

• A) null hypothesis should state μ1- μ2 < 0
• B) null hypothesis should state P1 - P2 ≥ 0
• C) alternative hypothesis should state P1 - P2 > 0
• D) alternative hypothesis should state μ1- μ2 < 0

---

Definitions:

Erythema Infectiosum

A mild, contagious viral disease commonly referred to as fifth disease, characterized by a facial rash that gives the appearance of a slapped cheek.

Rubeola

Also known as measles, a highly contagious viral infection characterized by fever, cough, and a distinctive rash.

Rubella

A contagious viral infection best known by its distinctive red rash, also known as German measles, and is of particular concern during pregnancy due to the risk of congenital rubella syndrome.

Sluggish Creatures

Organisms that exhibit slow movement or low activity levels, often as a result of their metabolic rates or environmental conditions.