A Random Sample of Nine Telephone Calls in an Office

question 126

Short Answer

A random sample of nine telephone calls in an office provided the following information.

a.Determine the point estimate for the average duration of all calls.
b.What is the point estimate for the standard deviation of the population?
c.Determine the standard error of the mean.
d.What is the point estimate for the proportion of all calls that were long distance?
e.
Determine the standard error of proportion.

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Definitions:

Organizing Strategies

Various plans and methods used by organizations, such as unions, to mobilize and recruit members or supporters to achieve their objectives.

Members-only Representation

A labor representation model where union services and benefits are provided exclusively to members of the union rather than all employees in a bargaining unit.

Card-check Agreements

A method for workers to organize into a union wherein if a majority of employees sign authorization cards expressing their wish to unionize, the employer may recognize the union without a formal election.

NLRB

Stands for the National Labor Relations Board, a U.S. federal agency overseeing labor law enforcement, particularly concerning collective bargaining and unfair labor practices.