A Time Study Analyst Has Found the Select Time for a Work

question 106

Multiple Choice

A time study analyst has found the select time for a work element to be 14.0 minutes, with a sample standard deviation of 3.2 minutes. What is the minimum sample size needed if the estimate is to be within 4 percent of the average 95 percent of the time (z = 1.96) ?

• A) fewer than 100
• B) greater than or equal to 100 but fewer than 140
• C) greater than or equal to 140 but fewer than 180
• D) greater than or equal to 180

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Definitions:

Mitochondrial Mutations

Changes in the genetic material of mitochondria, which can lead to various diseases and conditions due to the mitochondria's role in energy production.

Mitochondrial DNA

Genetic material found in mitochondria, the energy-producing structures within cells, inherited almost exclusively from the mother.

Ancestral Allele

The original version of a gene that existed in a common ancestor of a species or a group of species.

EPAS1 Allele

A genetic variant associated with adaptation to high-altitude environments, often studied in populations living in the Himalayas.