Software file updates. Software configuration management was used to monitor a software en...

Software file updates. Software configuration management was used to monitor a software engineering team’s performance at Motorola, Inc. ( Software Quality Professional , Nov. 2004). One of the variables of interest was the number of updates to a file changed because of a problem report. Summary statistics for n = 421 files yielded the following results:  = 4.71, s = 6.09, QL = 1 , and QU = 6. Are these data approximately normally distributed Explain.