A Manufacturer of Industrial Plywood Has a Contract to Supply

question 54

Multiple Choice

A manufacturer of industrial plywood has a contract to supply a boat maker with a large amount of plywood.One of the specifications calls for the standard deviation in thickness to not exceed .03 inches.A sample of n = 30 sheets was sampled randomly from a recent production run.The mean thickness was right at the 3/4 inch target thickness and the sample standard deviation was .05 inches.Testing at the 0.05 level of significance,which of the following is true?

• A)The test statistic is approximately 80.56.
• B)The critical value is approximately χ² = 43.773.
• C)The test statistic is approximately 48.333.
• D)Based on the sample data,there is no evidence to suggest that the plywood is not meeting the specifications.

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Definitions:

Small Intestine

A part of the gastrointestinal tract between the stomach and large intestine, where most of the digestion and absorption of nutrients occurs.

Large Intestine

The final section of the digestive system, responsible for water absorption and the formation of feces.

Visceral Peritoneum

The inner layer of the peritoneum that envelopes abdominal organs, providing a protective covering and supporting their functions.

Serous Membrane

Thin sheet composed of epithelial and connective tissues; it lines cavities that do not open to the outside of the body or contain glands but do secrete serous fluid.