A Mid-Sized Company Has Decided to Implement an Enterprise Resource $\mu _ { d } = 0$

question 13

Multiple Choice

A mid-sized company has decided to implement an enterprise resource planning (ERP) system, and management suspects that many of its employees are concerned about the planned implementation.Managers are considering holding informational workshops to help decrease anxiety levels among employees.They randomly select 16 employees to participate in a pilot workshop.These employees were given a questionnaire to measure anxiety levels about ERP before and after participating in the workshop.
If we let d = post-workshop anxiety level - pre-workshop anxiety level, the correct alternative hypothesis to determine if this approach was successful is

• A) \(\mu _ { d } = 0\)
• B) \(\mu _ { d } < 0\)
• C) \(\mu _ { d } > 0\)
• D) \(\mu _ { d } \neq 0\)
• E) \(\mu _ { d } \leq 0\)

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Definitions:

Night's Sleep

A period of sleep taking place during the night, important for physical and mental recovery and health.

Brain Waves

Electrical impulses in the brain that are visible on an electroencephalogram (EEG), indicative of different states of consciousness.

Sleep Stages

The different phases of sleep that a person goes through in a cycle, including REM (rapid eye movement) and various degrees of non-REM sleep.

Eye Movements

The voluntary or involuntary movement of the eyes, which can include blinking, and movements to follow visual objects or read.