c) Choose to analyze the data with either the pooled-variance t or Welch's t procedure. Justify your choice. d) Give the R output for your choice of procedure. e) Interpret the results1 including commenting on the results of the test of the null hypothesis that the true mean mismatch time is the same for both groups, and an appropriate interpretation of a relevant condence interval. Interpretations must relate to the problem at hand. 0 If we wish to use information in this study to draw conclusions about selfdiagnosed insomniacs vs normal sleepers in general, what biases might be present? [You'll need to look at relevant bits of the journal article to answer this.)