TABLE 9-1 A Manufacturer Produces Light Bulbs That Have a Mean Life

question 152

Short Answer

TABLE 9-1
A manufacturer produces light bulbs that have a mean life of at least 500 hours when the production process is working properly. Based on past experience, the population standard deviation is 50 hours and the light bulb life is normally distributed. The operations manager stops the production process if there is evidence that the population mean light bulb life is below 500 hours.
-Referring to Table 9-1, if you select a sample of 100 light bulbs and are willing to have a level of significance of 0.01, the probability of the operations manager failing to stop the process if the population mean bulb life is 490 hours is ________.

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Definitions:

Audience Visibility

The extent to which an audience can see or be aware of a message or content.

Extemporaneous

A method of speaking or performing with little or no advance preparation.

Presentation Method

Various techniques or approaches used to deliver information, ideas, or findings to an audience effectively.

Memorizing

The process of committing information to memory so that it can be recalled later without reference to the original source.