A taste test is conducted to determine which city has the best-tasting tap water. A panel of four judges tastes each of the samples from the four cities represented. The rating scale is a Likert scale...

A taste test is conducted to determine which city has the best-tasting tap water. A panel of four judges tastes each of the samples from the four cities represented. The rating scale is a Likert scale with 1 = worst to 9 = best. Sample data and the coding scheme are shown here:

Data:

00118

00126

00138

00145

00215

00226

00235

00244

00317

00324

00336

00344

00417

00425

00437

00443

Write a SAS program to describe these data and to perform an analysis of variance. Treat the ratings as interval data. Remember that we have a repeated measures design.