(Solved):
A journal article reports that a random sample of 25 antivirus software packages was used as a bas ...
A journal article reports that a random sample of 25 antivirus software packages was used as a basis for calculating a 98% t-based confidence interval for the true mean annual cost of an antivirus software in UAE. The resulting interval was (AED 234 , AED 294). Find the margin of error (E) of the 98% t-based confidence interval. If needed, round your answer to one decimal place.