The Average Time Between Phone Calls Arriving at a Call

question 90

Multiple Choice

The average time between phone calls arriving at a call centre is 30 seconds.Assuming that the time between calls is exponentially distributed, find the probability that less than two minutes elapse between calls.

• A)0.018
• B)0.064
• C)0.936
• D)0.982
• E)1.000

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Definitions:

Test Statistic

A value calculated from sample data during a hypothesis test used to determine whether to reject the null hypothesis.

Critical Value

A threshold value that defines the boundary of the rejection region in hypothesis testing, beyond which the null hypothesis is rejected.

Thalamus

A brain structure acting as a relay station for sensory information, excluding the sense of smell, to the cerebral cortex.

Median Section

a type of anatomical section that divides the body or an organ vertically into equal right and left halves.