A Researcher Wished to Evaluate the Operating Life of a Certain

question 83

Short Answer

A researcher wished to evaluate the operating life of a certain brand of storage battery. A group of 30, brand-new batteries was selected and placed in 30 identical automobiles. The lights in each automobile were then turned on (without running the engines), and the length of time before the batteries were fully discharged (lights went out) was recorded. The scores, in hours, were: 15, 10, 20, 18, 18, 11, 11, 11, 11, 12, 12, 12, 10, 9, 9, 8, 9, 9, 11, 11, 11, 15, 12, 12, 12, 10, 12, 12, 15, 12.
-Calculate the mean.

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Definitions:

Cumulative Probability

The probability of obtaining a result equal to or less than a specific value within a statistically distributed set of data.

Demand Probability

The likelihood or chance that a product or service will be desired or required by the market at a certain time.

Monte Carlo Simulation

A statistical technique employing random variables to simulate a model numerous times, thereby estimating the probable outcomes of various decisions or future events.

Cumulative Probability

The probability that a random variable is less than or equal to a specific value, often visualized as the area under the probability distribution curve to that point.