Business Statistics

258 Business Statistics

8.1 INTRODUCTION

While conducting research, a researcher has to collect data from various sources. We have already

discussed that for collecting data, relying on the entire population is neither feasible nor practical. So,

a researcher has to select a sample instead of going in for a complete census. A researcher faces prob-

lems in terms of the procedure of selecting a sample. We have discussed the concept of sample and

population in Chapter 1. Statistical inference is based on the information obtained from the sample.

On the basis of information obtained from the sample (through sample statistic), an inference about ...