Poindexter has two datasets to use in exploring the problem. The first dataset was obtained two months ago when the process was known to be definitely under control. It consists of 50 individual nozzle diameters and is normally distributed. That dataset can be found on the first sheet in the Excel file (the sheet labeled \"50 Throat Diameters\"). Poindexter's specification on that diameter was 0.1000 plus or minus 0.0050. The second dataset (on the second page in the Excel file labeled \"20 Samples of Size 5\") consists of 20 samples of 5 nozzle throat diameters. This data was taken more recently (just a week ago) and mm a problem had developed at the supplier (if there really is a problem in the supplier's operation). Each horizontal row in that second dataset represents one sample consisting of five observations. Each row gives that sample's five observations in columns B to F, then gives that sample's mean in column H, and finally that sample's range in column I. The 20 samples are listed in the order in which they were taken. That is, sample 1 (the first row) was taken first, sample 2 (the second row) was taken second, etc. Again, this data was taken amr a problem mg}: have developed so we don't know it the process was under control or it it was normally distributed. Assume that there is nothing wrong with the design of the Rat Freeze. That is, if the Rat Freeze is manufactured to specification, the rat will freeze on the spot. That means, that either the rat was able to move more than an inch due to a failure in the supplier's process or there really isn't really a problem at all (the fact that the rat didn't die instantly was just a very unlikely uke). You need to find out what the truth is; is there a problem with the supplier's process or not