net promoter score calculation stan s a department store chain has conducted a surve 666729

Net promoter score calculation Stan’s, a department store chain, has conducted a survey to collect data on customer satisfaction and perception of its merchandise and service. Data for responses to the question “How likely is it that you would recommend Stan’s to a friend or colleague?” appear below.

SCORE

NUMBER OF RESPONSES

10

641

9

1,265

8

1,254

7

228

6

548

5

493

4

357

3

63

2

42

1

109

Total

5,000

Required

What is Stan’s net promoter score?