SCENARIO 12-4
the Managers of a Brokerage Firm Are Interested

question 87

Short Answer

SCENARIO 12-4
The managers of a brokerage firm are interested in finding out if the number of new clients a broker brings into the firm affects the sales generated by the broker.They sample 12 brokers and determine the number of new clients they have enrolled in the last year and their sales amounts in thousands of dollars.These data are presented in the table that follows. $\begin{array}{lll}\text { Broker } & \text {Clients} & \text {Sales }\\1 & 27 & 52 \\2 & 11 & 37 \\3 & 42 & 64 \\4 & 33 & 55 \\5 & 15 & 29 \\6 & 15 & 34 \\7 & 25 & 58 \\8 & 36 & 59 \\9 & 28 & 44 \\10 & 30 & 48 \\11 & 17 & 31 \\12 & 22 & 38\end{array}$
-Referring to Scenario 12-4, suppose the managers of the brokerage firm want to construct a 99%confidence interval estimate for the mean sales made by brokers who have brought into the firm24 new clients.The t critical value they would use is _.

---

Definitions:

Concrete Shell

A Concrete Shell is a structural form made of concrete, often thin, used to create roofs and other architectural features with complex shapes.

Vinyl Liner

A type of material used to line the surface of swimming pools, providing a smooth, watertight barrier that is both flexible and durable.

Repair Cost

The expenditure associated with fixing or restoring a broken or damaged item to its original condition.

Social Networking Site

An online platform that allows users to create public profiles, interact with real-life friends, and meet other people based on shared interests or activities.