The Next Questions Are Based on the Following Information

question 31

Multiple Choice

The Next Questions Are Based On The Following Information:
A hydraulic press is operating correctly when the standard deviation of the pressure is less than 120 pounds-per-square-inch (psi) .Suppose you take a random sample of 15 measurements throughout the day of the psi and find the standard deviation to be 148.Suppose you want to test whether the press is operating correctly.
-What are the appropriate null and alternative hypotheses?

• A)H₀ : σ² = 120² and H₁ : σ² > 120²
• B)H₀ : σ = 120 and H₁ : σ < 120
• C)H₀ : σ = 120 and H₁ : σ ≠ 120
• D)H₀ : σ² > 120 and H₁ : σ² ≤ 120

---

Definitions:

Human Development

The process of growth and change that every person undergoes from birth to death, encompassing physical, cognitive, and socioemotional growth.

Well-Being

A state of being comfortable, healthy, or happy.

Reed

A tall, slender-leaved plant of the grass family that grows in water or on marshy ground.

Nursing Theory

A conceptual framework designed to guide the practice of nursing, providing a systematic way of understanding nursing phenomena.