Consumer focused product development
A GREGGS case study

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Page 7: Small-scale v large-scale tests

Testing is an expensive exercise. Although it is helpful to carry out tests on as large a sample as possible, it makes good economic sense first, to conduct a sample test using perhaps 30 people to obtain an initial reaction to a product. If it proves to be well received then large-scale tests can be carried out on samples of not less than 100 people.

GREGGS | Consumer focused product development
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