The Average Manufacturing Work Week in Metropolitan Chattanooga Was 40 $\mu$

question 117

Multiple Choice

The average manufacturing work week in metropolitan Chattanooga was 40.1 hours last year.It is believed that the recession has led to a reduction in the average work week.To test the validity of this belief,the hypotheses are

• A)H₀: \(\mu\) < 40.1 H_a: \(\mu\) \(\ge\) 40.1
• B)H₀:\(\mu\) \(\ge\) 40.1 H_a: \(\mu\) < 40.1
• C)H₀: \(\mu\) > 40.1 H_a: \(\mu\) \(\le\) 40.1
• D)H₀: \(\mu\) = 40.1 H_a:\(\mu\) \(\neq\) 40.1

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Definitions:

Arrector Pili

Small muscles connected to hair follicles that, when contracted, cause hair to stand up, producing 'goosebumps'.

Goose Bumps

The raising of small bumps on the skin due to the contraction of miniature muscles at the base of hair follicles, usually in response to cold or fear.

Hair Follicles

The skin organ that produces hair, consisting of a small tubular cavity containing the root of a hair and located in the dermis of the skin.

Nervous Tissue

Tissue that contains nerve cells (neurons), which conduct impulses, and neuroglia, which support, protect, and provide nutrients to neurons.