Which Is the Correct Formula for the Lower Limit of a Confidence

question 25

Multiple Choice

Which is the correct formula for the lower limit of a confidence interval for a repeated measures t test?

• A) M_D - t (s_MD)
• B) μ_D - t (s_MD)
• C) (μ₁ - μ₂) - t (s_M₁-M₂)
• D) (M₁ - M₂) - t (s_M₁-M₂)

---

Definitions:

Multi-leaf Spring

A type of suspension spring consisting of several layers of metal leaves stacked together to provide support and absorb shocks.

Equalizing-beam Suspension

A type of vehicle suspension system that uses a central beam to distribute weight and balance between axles.

Walking Beam

A pivoting, tandem-axle suspension beam that maintains axle spacing and alignment while maximizing tire-to-road contact.

Torque Rods

Components in vehicle suspension systems that limit the axle's movement and help maintain alignment by absorbing stress and vibration.