In a Preliminary Work Sample of an Operation, Out of 50

question 78

Essay

In a preliminary work sample of an operation, out of 50 observations the operator was observed idle in 5 observations. What sample size is required for a work sampling study if the desired confidence level is 98% and the desired accuracy level is 5%?

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Definitions:

Trypanosomes

Single-celled parasitic organisms responsible for diseases like African sleeping sickness and Chagas' disease, transmitted by insect vectors.

Foraminiferans

Single-celled protists with shells, known for their role in marine ecosystems and as indicators of environmental change.

Rhizarians

A group of mostly unicellular eukaryotic organisms that include foraminifera, radiolarians, and cercozoans, characterized by their amoeboid movement and complex shell structures.

Coccolithophorids

A group of planktonic algae that produce calcium carbonate plates known as coccoliths, contributing significantly to marine sediments.