A Researcher Conducts a Hypothesis Test on a Population Proportion $\mathrm { H } _ { 0 } : \mathrm { p } = 0.4$

question 54

Multiple Choice

A researcher conducts a hypothesis test on a population proportion. Her null and alternative hypothesis are $\mathrm { H } _ { 0 } : \mathrm { p } = 0.4$ and $\mathrm { H } _ { \mathrm { a } } : \mathrm { p } < 0.4$ . The test statistic and $\mathrm { p }$ -value for the test are $\mathrm { z } = - 3.01$ and $\mathrm { p }$ -value $= 0.0013$ . For a significance level of $\alpha = 0.05$ , choose the correct conclusion regarding the null hypothesis.

• A) There is not sufficient evidence to conclude that the population proportion is significantly different from 0.04.
• B) There is sufficient evidence to conclude that the population proportion is significantly different from 0.04.
• C) There is not sufficient evidence to reject the null hypothesis that the population proportion is equal to 0.04.
• D) There is sufficient evidence to accept the null hypothesis that the population proportion is equal to 0.04.

Understand the importance of people management for organizational improvement.

Acknowledge the potential consequences of management strategies that neglect employee welfare.

Distinguish between effective and ineffective management practices within organizational behavior.

Understand how to perform bank reconciliations and the key components involved, such as deposits in transit, outstanding checks, and bank service charges.

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Definitions:

Volley Principle

A theory explaining how auditory nerve fibers respond to sounds of different frequencies by firing together in volleys to convey the pitch of sound.

Frequency Theory

A theory in the field of psychophysics that suggests the perception of pitch is related to the rate at which auditory nerve fibers fire.

Basilar Membrane

An important structure in the cochlea of the inner ear, it plays a critical role in the sensory process of hearing by transforming sound vibrations into neural signals.

High-Frequency Sounds

Sounds that have a high pitch, typically above 2,000 Hz, often beyond the range of human hearing.