Solve using R Script to compute a 90% conﬁdence interval for the difference between the average running times of ﬁlms produced by the two companies
Please solve using R Script and show all coding/steps. Thanks in advance!
The following data represent the running times of ﬁlms produced by two motion-picture companies.
There are 2 companies, A and B.
Company A's Time (minutes) is 103, 94, 110, 87, 98
Company B's Time (minutes) is 97, 82, 123, 92, 175, 88, 118
Construct a 90% confidence interval for σ2 A / σ2B .
Assume that the running-time differences are approximately normally distributed with unequal variances.