Instruction 18-16 A Factory Supervisor Is Concerned That the Time It Takes

question 35

Short Answer

Instruction 18-16
A factory supervisor is concerned that the time it takes workers to complete an important production task (measured in seconds) is too erratic and adversely affects expected profits. The supervisor proceeds by randomly sampling five individuals per hour for a period of 10 hours. The sample mean and range for each hour are listed below.
She also decides that lower and upper specification limit for the critical-to-quality variable should be 10 and 30 seconds, respectively.
-Referring to Instruction 18-16,what percentage of the time it takes workers to complete an important production task will fall inside the specification limits?

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Definitions:

Real GDP

The measure of a country's economic output adjusted for price changes or inflation, providing a more accurate reflection of an economy's size and growth.

Annual Average Growth Rate

A percentage that shows the mean annual growth rate of an investment over a specified time period, assuming reinvestment of dividends and capital gains.

China

A country in East Asia, the world's most populous nation, with a vast landscape encompassing grassland, desert, mountains, lakes, rivers, and more than 14,000km of coastline.

Real GDP Per Person

The value of all final goods and services produced within a country in a year, adjusted for inflation, divided by the country's population.