The manager of a large department store is reviewing customer service records an
ID: 3133898 • Letter: T
Question
The manager of a large department store is reviewing customer service records and wonders whether customer satisfaction is associated with age. He randomly selects 200 customers and asks them how satisfied they are. He classifies the data by the age of the customer (teenager, young adult, adult, or senior citizen) and by their degree of satisfaction (very satisfied, satisfied, unsatisfied, very unsatisfied). A hypothesis test for which of the following would be best for addressing the manager's question?
One mean, known
One mean, unknown
Paired data
Two means, using independent samples
ANOVA
One proportion
Two proportions
Independence of categorical variables ()
The manager of a large department store is reviewing customer service records and wonders whether customer satisfaction is associated with age. He randomly selects 200 customers and asks them how satisfied they are. He classifies the data by the age of the customer (teenager, young adult, adult, or senior citizen) and by their degree of satisfaction (very satisfied, satisfied, unsatisfied, very unsatisfied). A hypothesis test for which of the following would be best for addressing the manager's question?
One mean, known
One mean, unknown
Paired data
Two means, using independent samples
ANOVA
One proportion
Two proportions
Independence of categorical variables ()
Explanation / Answer
Correct Answer: Independence of categorical variables
since one variable is AGE and another variable is degree of saties faction. He two variables are categoircal variables.
We have to use a test which is "Chi-square test for independence of attributes" for this data.
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