SCENARIO 8-2 A Quality Control Engineer Is Interested in the Mean Length

question 150

Short Answer

SCENARIO 8-2
A quality control engineer is interested in the mean length of sheet insulation being cut automatically by machine.The desired mean length of the insulation is 12 feet.It is known that the standard deviation in the cutting length is 0.15 feet.A sample of 70 cut sheets yields a mean length of 12.14 feet.This sample will be used to obtain a 99% confidence interval for the mean length cut by machine.
-Referring to Scenario 8-2,the critical value to use in obtaining the confidence interval is .

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Definitions:

Dominant Phenotype

Refers to the trait that appears in an individual's phenotype when at least one dominant allele for a particular gene is present.

Recessive Phenotype

An observed trait or characteristic of an organism that results from having two recessive alleles for a particular gene.

Heterozygous

Genetically describes an organism that has two different alleles of a gene, one inherited from each parent.

Unattached Earlobes

A genetic trait where the earlobes hang free and are not connected to the side of the head.