The Owner of a Local Nightclub Has Recently Surveyed a Random

question 106

Multiple Choice

The owner of a local nightclub has recently surveyed a random sample of n = 250 customers of the club.She would now like to determine whether or not the mean age of her customers is greater than 30.If so,she plans to alter the entertainment to appeal to an older crowd.If not,no entertainment changes will be made.Suppose she found that the sample mean was 30.45 years and the sample standard deviation was 5 years.
-What is the p-value associated with the test statistic?

• A) 0.3577
• B) 0.1423
• C) 0.0200
• D) 0.0780

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Definitions:

Psychotherapy Research Project

An investigative endeavor aimed at exploring the effectiveness, methodologies, or other aspects of psychotherapeutic practices.

Clinician Rating Scale

A tool used by healthcare professionals to quantitatively assess the severity or presence of a patient's condition.

Meta-Analysis

A statistical technique for combining the findings from independent studies to identify patterns, differences, or the effectiveness of treatments.

Effect Sizes

Quantitative measurements used to assess the magnitude of the treatment effect or difference observed in a study, providing a scale of impact beyond p-values.