Business Statistics

386 Business Statistics

sample of 25 employees and administered a questionnaire based

on a seven-point rating scale. The average score obtained by

the employees was 32.10. Sample standard deviation for the

rst sample is computed as 3.25. In order to measure

the degree of job satisfaction of employees after the company’s

spate of acquisitions, it conducted another survey in 2006 with

the same questionnaire and with a sample size of 28. The aver-

age score obtained by the employees was 41.20. Sample standard

deviation for the second sample is computed as 2.41. The output

generated by Minitab assuming ...