Marathon Runners a Researcher Wants to Study the Average Miles Run

question 174

Essay

Marathon Runners
A researcher wants to study the average miles run per day for marathon runners.In testing the hypotheses: H₀: μ = 25 miles vs.H₁: μ ≠ 25 miles,a random sample of 36 marathon runners drawn from a normal population whose standard deviation is 10,produced a mean of 22.8 miles weekly. ​ ​
-{Marathon Runners Narrative} Compute the value of the test statistic and specify the rejection region associated with 5% significance level.

---

Definitions:

Repression

A defense mechanism where unwanted thoughts or desires are unconsciously pushed out of conscious awareness.

Defense Mechanism

A defense mechanism is a psychological strategy unconsciously used to protect oneself from anxiety arising from unacceptable thoughts or feelings.

Anxiety-Arousing Thoughts

Internal cognitions or thoughts that trigger or increase feelings of anxiety, fear, or unease.

Reaction Formation

A defense mechanism where an individual behaves in a way that is opposite to their true feelings or desires.