Suppose $\mu _ { 1 } \text { and } \mu _ { 2 }$

question 53

Essay

Suppose $\mu _ { 1 } \text { and } \mu _ { 2 }$ are true mean stopping distances at 50 mph for cars of a certain type equipped with two different types of braking systems. The following statistics are given: m = 6, $\bar { x } = 116 , s _ { 1 } = 5.0 , n = 6 , \bar { y } = 129 \text {, and } s _ { 2 } = 5.5$ Calculate a 95% CI for the difference between true average stopping distance for cars equipped with system 1 and cars equipped with system 2. Does the interval suggest that precise information about the value of this difference is available?

---

Definitions:

Operant Conditioning

A teaching process in which the force of a response is influenced by either encouragement or disciplinary actions.

Classical Conditioning

A learning process that occurs when two stimuli are repeatedly paired: a response which is at first elicited by the second stimulus is eventually elicited by the first stimulus alone.

Trial and Error

Trial and error is a fundamental method of solving problems characterized by repeated, varied attempts which are continued until success, or until the agent stops trying.

Unlearned

Pertaining to behaviors or reactions that are innate and not acquired through learning or experience.