An Automatic Coffee Vending Machine Dispenses a Different Amount of Coffee

question 78

Essay

An automatic coffee vending machine dispenses a different amount of coffee in ounces for each cup. Assume the nine measurements below were taken from a population with a normal distribution.
6.5, 6.0, 6.9, 6.2, 6.1, 6.6, 6.8, 6.0, 6.1
Construct an 80% confidence interval for the mean amount of ounces that is dispensed for all cups of coffee from this machine. Interpret the interval in part (a).
a. What is the 80% confidence interval (CI)?
CI = ______________ Enter (n1, n2)
Interpret the interval:
________________________________________________________

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Definitions:

Janitorial Department

A dedicated division within an organization responsible for cleaning and maintaining the premises.

Cost Allocated

The process of distributing indirect costs to different departments, products, or projects within an organization.

Sales Department

The division within a business focused on sales and customer acquisition strategies.

Step-Down Method

An accounting method used to allocate service department costs to producing departments in a sequential manner, based on a hierarchy of services provided.