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Identifying Data Types

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Identifying Data Types

For each example, decide whether the data is qualitative (descriptive or categorical) or quantitative (a number or measurement). Give a brief reason where asked.

Recognising data types

1.At a supermarket, shoppers are asked which checkout they used: self-service, express, or staffed. Is the response qualitative or quantitative?

Qualitative
Quantitative

2.A supermarket records the mass, in kilograms, of each bag of potatoes sold. Is this data qualitative or quantitative?

Qualitative
Quantitative

3.Customers name the brand of tea they usually buy. Classify this data as qualitative or quantitative.

4.A till report gives the number of cartons of milk sold during each hour. Classify this data as qualitative or quantitative.

Choosing useful data

5.Georgia is helping a supermarket decide whether to stock more ready-made meals. Which two pieces of information would be most useful? Select two.

Customers' preferred meal flavours
The number of ready-made meals sold each day
The colour of customers' shoes
The names of nearby streets

6.A supermarket is considering changing its opening hours. Select the most relevant data to collect.

Customers' opinions about the current hours
The number of customers entering during each hour
Both customers' opinions and hourly customer counts
The colour of the shopping baskets

Apply and explain

7.Mele is collecting information to help a supermarket improve its customer service. Classify each variable as qualitative or quantitative: (a) the type of help requested, (b) the number of minutes a customer waits, (c) the customer's rating category: poor, fair, good, or excellent, (d) the number of staff members on duty.

8.Explain why a supermarket manager should identify whether collected data is qualitative or quantitative before analysing it. Include one suitable way to summarise each type.

9.Write one possible qualitative survey question a supermarket could ask to improve its fresh-food section. State the kind of response it would collect.

10.Write one possible quantitative survey question a supermarket could ask about its fresh-food section. State the kind of response it would collect.

11.Explain how the qualitative question and quantitative question you designed could each contribute to a decision about the fresh-food section.