The First Unit of a Product Took 832 Hours to Build

question 68

Multiple Choice

The first unit of a product took 832 hours to build, and the learning curve is 75%. How long will it take to make the 30th unit? (Use at least three decimals in the exponent if you use the formula approach.)

• A) less than 200 hours
• B) from 200 to 225 hours
• C) from 225 to 250 hours
• D) from 2501 to 275 hours
• E) 275 or more hours

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Definitions:

Action Potential

A rapid, temporary change in the electrical membrane potential of a neuron or muscle cell, allowing the transmission of signals.

Relatively Refractory Period

A phase following the absolute refractory period during which a neuron requires a stronger than normal stimulus to fire an action potential.

Absolutely Refractory Period

A phase following action potential in neurons during which no new action potential can be initiated, regardless of the strength of the incoming signal.

Tetraethylammonium (TEA)

Tetraethylammonium (TEA) is a chemical compound known to block potassium channels in cells, used in research to understand ion channel functions and in studying neural and muscular activity.