Discrete Components Inc $\alpha$ = 005, the Appropriate Decision Is ___

question 43

Multiple Choice

Discrete Components Inc.manufactures a line of electrical resistors.Presently, the carbon composition line is producing 100 ohm resistors.The population variance of these resistors "must not exceed 4" to conform to industry standards.Periodically, the quality control inspectors check for conformity by randomly select 10 resistors from the line, and calculating the sample variance.The last sample had a variance of 4.36.Assume that the population is normally distributed.Using $\alpha$ = 0.05, the appropriate decision is ___.

• A)increase the sample size
• B)reduce the sample size
• C)reject the null hypothesis
• D)do not reject the null hypothesis
• E)maintain status quo

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Definitions:

Speculation

The process of forming theories or conjectures without firm evidence, often in the context of financial investments.

Empirical

Concentrates on, is related to, or can be substantiated through empirical observation or personal experience rather than through theoretical speculation or pure logical analysis.

Systematic Observation

The methodical and structured observation and recording of behavior or phenomena in natural or controlled conditions.

Psychotherapy

A therapeutic treatment approach primarily based on verbal communication, aimed at improving mental health.