Sub Sandwich Customers

question 36

Essay

Sub Sandwich Customers
The marketing manager of a Sub Shop chain is in the process of examining some of the demographic characteristics of her customers.In particular,she would like to investigate the belief that the ages of the customers of Sub Shops,hamburger emporiums,and fast-food chicken restaurants are different.The ages of eight randomly selected customers of each of the restaurants are recorded and listed below.From previous analyses we know that the ages are normally distributed with equal variances for each group. ​ ​
-{Sub Sandwich Customers Narrative} Do these data provide enough evidence at the 5% significance level to infer that there are differences in ages among the customers of the three restaurants?

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Definitions:

Re-Expressing

The mathematical transformation of data in statistics to meet the assumptions of statistical models or to improve interpretability.

Assets

Resources owned by a person or entity considered valuable and can be used to meet debts, commitments, or legacies.

Re-Expression

The process of transforming data using a mathematical function to achieve a more linear relationship between variables.

Histogram

A graphical representation of data using bars of different heights to show the distribution of values within a dataset.