SCENARIO 13-4 The Managers of a Brokerage Firm Are Interested in Finding

question 73

Short Answer

SCENARIO 13-4
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.

-Referring to Scenario 13-4,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 firm 24 new clients.The confidence interval is from _____ to _____ .

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Definitions:

Confidence Interval

A set of values, obtained from sample data, that probably includes the value of an unspecified population parameter, given a certain confidence level.

Point Estimate

A solitary figure or statistical measure employed to approximate the worth of a population parameter.

Confidence Interval

A portfolio of values, extracted from sampling efforts, believed to encapsulate the undiscovered value of a population attribute.

Normal Distribution

A balanced probability distribution around the mean, demonstrating that occurrences are more frequent near the mean than away from it.