A Sample of 46 Students Enroll in a Program That $\bar { x } = 11$

question 58

Multiple Choice

A sample of 46 students enroll in a program that claims to improve scores on the quantitative reasoning portion of the Graduate Record Examination (GRE) . The participants take a mock GRE test before the Program begins and again at the end to measure their improvement.
The mean number of points improved was $\bar { x } = 11$ Assume the standard deviation is $\sigma = 40$ and let $\mu$ be The population mean number of points improved. To determine whether the program is effective, a Test is made of the hypotheses $H _ { 0 } : \mu = 0$ versus $H _ { 1 } : \mu > 0$ Compute the value of the test statistic.

• A) 0.28
• B) 0.0307
• C) 1.87
• D) 11.80

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Definitions:

Arbitrator's Decision

An arbitrator's decision is a binding resolution made by an arbitrator, a neutral third party chosen to settle a dispute between parties in arbitration.

Effective Mediators

Individuals skilled in facilitating negotiation and conflict resolution between parties, aiming for a mutually satisfactory outcome.

Power Balancing

The act of distributing authority and influence among different stakeholders to ensure fairness and avoid domination by any single entity.

Neutral

An unbiased, impartial stance or a person not favoring any side in a conflict or dispute.