How Many Observations Would Be Required in a Time Study

question 133

Essay

How many observations would be required in a time study in order to obtain 95 percent confidence that the average time observed was no more than 0.6 minutes from the true mean, assuming a standard deviation of cycle time of 1.8 minutes?

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Definitions:

Parkinsonism

A syndrome characterized by symptoms such as tremors, stiffness, and slow movement, similar to those seen in Parkinson's disease.

Stooped Posture

A forward bending of the spine, often associated with conditions such as osteoporosis, Parkinson's disease, or long-term spinal muscle weakness.

Pill-Rolling

A type of tremor characteristic of Parkinson's disease, resembling the motion of rolling a small object or pill between the thumb and forefinger.

Increased Intracranial Pressure

Elevated pressure within the skull, which can lead to neurological issues and requires immediate medical attention.