21. The article from which the data in Exercise 20 was obtained also gave the accompanying data on the composite mass/outer fabric mass ratio for highquality fabric specimens.

1.15 1.40 1.34 1.29 1.36 1.26 1.22 1.40 1.29 1.41 1.32 1.34 1.26 1.36 1.36 1.30 1.28 1.45 1.29 1.28 1.38 1.55 1.46 1.32 MINITAB gave r  .9852 as the value of the Ryan—Joiner test statistic and reported that P-value

.10. Would you use the one-sample t test to test hypotheses about the value of the true average ratio? Why or why not?