A popcorn company wishes to make recommendations to its customers about the right cooking time and cooking temperature for its microwave popcorn. The company investigated the effect of two times (2 and 3 minutes) and two temperatures (low and high) on the number of un-popped kernels. The data, analysis of variance table, and a plot of means are shown below.

What is the value of MSE (mean square error)?

2 minutes 3 minutes low temp 20 18 high temp 5 9 0649 5 unpopped 25050 15 10 low temp -high temp 2 3 minutes ANOVA Source of Variation SS df MS F P-value F crit Sample 60.5 Columns 98 Interaction Within 84.5 23 1114 60.5 10.522 0.032 7.709 98 17.043 0.015 7.709 84.5 14.696 0.019 7.709 5.75 Total 266 -- 7