TABLE 6-2 John Has Two Jobs. for Daytime Work at a Jewelry

question 144

Short Answer

TABLE 6-2
John has two jobs. For daytime work at a jewelry store he is paid $15,000 per month, plus a commission. His monthly commission is normally distributed with mean $10,000 and standard deviation $2,000. At night he works as a waiter, for which his monthly income is normally distributed with mean $1,000 and standard deviation $300. John's income levels from these two sources are independent of each other.
-Referring to Table 6-2, John's commission from the jewelry store will be between what two values symmetrically distributed around the population mean 80% of the time?

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Definitions:

Acquaintances

Individuals one knows but with whom one is not particularly close, usually part of one's wider social circle.

Stress Resistance

The ability of an individual to withstand or manage stress without succumbing to its negative effects on mental and physical health.

Behavior Pattern

A recurrent way of acting by an individual or group towards a given object or in a given situation.

Hardiness

A personality trait characterized by resilience and the ability to endure difficult conditions.