In a Manufacturing Process a Random Sample of 9 Bolts

question 37

Multiple Choice

In a manufacturing process a random sample of 9 bolts manufactured has a mean length of 3 inches with a standard deviation of .3 inches.What is the 95 percent confidence interval for the true mean length of the bolt?

• A)2.804 to 3.196
• B)2.308 to 3.692
• C)2.769 to 3.231
• D)2.412 to 3.588
• E)2.814 to 3.186

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Definitions:

Neandertals

See Homo neanderthalensis.

Neander Valley

A valley in Germany where the first identified Neanderthal fossils were discovered, lending the name to the Neanderthal species.

Fossils

Remains or impressions of ancient organisms preserved in rock, amber, or by petrification, providing evidence of past life on Earth.

U-shaped Arrangement

A specific spatial organization where objects, cells, or structures form the shape of the letter "U", often found in anatomical structures or architectural designs.