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

question 149

Short Answer

TABLE 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 Table 8-2, the confidence interval goes from ________ to ________.

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Definitions:

Common Ancestor

The latest ancestor from whom all members of a specific group directly originate.

Allele Frequency

The proportion of a specific allele in the population. Compare with genotype frequency and phenotype frequency.

Genetic Equilibrium

The condition of a population that is not undergoing evolutionary change (i.e., in which allele and genotype frequencies do not change from one generation to the next). See Hardy–Weinberg Principle.

Allele Frequencies

The proportion of various alleles of a gene in a population, which can change over time due to evolutionary pressures, genetic drift, mutation, and gene flow.