The Manager of a Fast Food Restaurant Is Investigating the Average

question 59

Essay

The manager of a fast food restaurant is investigating the average number of fries per Large-sized offered to customers, to assess quality control. The manager took a random sample of five Large-sized orders of fries, and counted the number of fries per serve, with the results given below: $\begin{array}{|r|r|r|r|r|}\hline73 & 75 & 83 & 68 & 78 \\\hline\end{array}$ Assume that the number of French fries served at this fast food restaurant is normally distributed. Can we infer at the 5% significance level that the average number of fries served in a Large-sized order of fries at this fast food restaurant is over 70?

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Definitions:

Traditional Approach

A conventional method often based on long-established practices or techniques.

Service Business

A type of business that primarily offers intangible products, such as work, expertise, or services, instead of physical goods.

Facility Costs

Expenses related to the physical buildings and property necessary for a company to conduct its business, including rent, utilities, and maintenance.

Overhead Cost Application

The process of distributing overhead costs to specific cost objects such as products, services, or departments based on a chosen allocation base.