In Inferential Statistics,maximum number of times data is read to find or deduce the Correct Information about the data set ,with the help of Different Measures of variation or for the particular kind of information.And then the old Hypothesis about the Data set is being tasted and if found incorrect, remedial measures are taken, that is it can be altered and Correct Hypothesis is Structured.
→Data Set is about : Average life of Different Bulbs
→Measure of Variation : Mean
→Phase of inferential statistics: Data Analysis
Data Analysis ,that is with the help of mean,average life of bulb-lifetime data is gathered.