Directions: Using the following data, you must test the variances and the means for the thickness of four sets of corn flakes based on the toasting times. You must provide four EXCEL printouts using either DATA ANALYSIS or PhStat2. All printouts must done using the same add-in software package. You are also required to provide two six-step hypothesis testing procedure write-ups, one for each problem. You should report the p- values and interpret their meaning. One of the steps involved in the processing of corn flakes involves the toasting of the flakes. The data below records the corn flake thickness (mm) for four different toasting times (seconds). 20 sec 40 sec 60 sec 80 sec 1.6 1.7 2.0 1.0 0.6 1.6 1.2 0.7 0.7 0.8 0.7 0.3 1. 10 pts a) At the .05 level of significance, is there enough evidence to indicate a difference in the variances of the mean thickness of the corn flakes for these for the different toasting times? 1.5 pt. b) What is the p-value for this problem? What does it mean? 2. 10 pts a) At the .05 level of significance, is there enough evidence to indicate a difference in the mean thickness of the corn flakes for the different toasting times? 1.5 pt. b) What is the p-value for this problem? What does it mean? 2 pts c) If you had found a significant difference in the mean thickness of the corn flakes based on toasting times, what method would you use to determine which means are significantly different