A Sample Standard Deviation and Sample Size Are Given $\mathrm { s } = 13.1 , \mathrm { n } = 22$

question 43

Multiple Choice

A sample standard deviation and sample size are given. Use the one-standard-deviation x²-test to conduct the requiredhypothesis test.
- $\mathrm { s } = 13.1 , \mathrm { n } = 22$
$\mathrm { H } _ { 0 } : \sigma = 16.1 , \mathrm { H } _ { \mathrm { a } } : \sigma < 16.1 , \alpha = 0.01$

• A)Test statistic: \(\mathrm { X } ^ { 2 } = 13.903\). Critical value \(= 8.897\). Do not reject \(\mathrm { H } _ { 0 }\).
• B) Test statistic: \(\mathrm { X } ^ { 2 } = 13.903\). Critical value \(= 8.897\). Reject \(\mathrm { H } _ { 0 }\).
• C) Test statistic: \(X ^ { 2 } = 13.903\). Critical value \(= 38.932\). Reject \(\mathrm { H } _ { 0 }\).
• D) Test statistic: \(\mathrm { X } ^ { 2 } = 13.903\). Critical value \(= 38.932\). Do not reject \(\mathrm { H } _ { 0 }\).

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Definitions:

Ependymal Cells

Glial cells that line the ventricles of the brain and the spinal cord, involved in the production of cerebrospinal fluid.

Glial Cells

Glial cells, or neuroglia, are non-neuronal cells in the central and peripheral nervous systems that support and protect neurons.

Ependymal Cells

Glial cells that line the ventricles of the brain and the central canal of the spinal cord, involved in the production of cerebrospinal fluid.

Astrocytes

A type of glial cell in the brain and spinal cord involved in physical and nutritional support for neurons, as well as neurotransmitter regulation.