The Manager of the Local Grocery Store Has Determined That

question 17

Multiple Choice

The manager of the local grocery store has determined that, on the average, 4 customers use the service desk every half-hour. Assume that the number of customers using the service desk has a Poisson distribution.
-What is the probability that during a randomly selected half-hour period no more than 2 customers use the service desk?

• A)2381
• B)1465
• C)7619
• D)8535
• E)0916

---

Definitions:

True Proportion

The actual proportion of a particular outcome within the entire population.

Confidence Interval

An estimated range of values calculated from a given set of sample data, intended to offer a degree of certainty that a population parameter lies within it.

Simple Random Sample

A smaller group taken from a larger statistical group where each individual has the same chance of selection.

Population

The entire group of individuals or instances about whom the data is to be collected or researched.