A Sample of 35 Students Enroll in a Program That $\bar { x } = 10$

question 67

Multiple Choice

A sample of 35 students enroll in a program that claims to improve scores on the quantita reasoning portion of the Graduate Record Examination (GRE) . The participants take a mc GRE test before the program begins and again at the end to measure their improvement.
The mean number of points improved was $\bar { x } = 10$ . Assume the standard deviation is $\sigma = 46$ 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 $P$ -value. ive

• A) 0.0496
• B) 0.0248
• C) 0.0992
• D) 1.2861

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Clinical Expertise

The ability and proficiency derived from direct involvement in healthcare and medical practice.

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The act of guiding, directing, or influencing individuals or groups towards the achievement of a goal or set of objectives.

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