Durable press fabrics wrinkle less. The data in Exercise 25.36 show thatdurable press
Chapter 0, Problem 25.37(choose chapter or problem)
Durable press fabrics wrinkle less. The data in Exercise 25.36 show thatdurable press treatment greatly reduces the breaking strength of cotton fabric.Of course, durable press treatment also reduces wrinkling. How much? Wrinklerecovery angle measures how well a fabric recovers from wrinkles. Higher isbetter. Here are data on the wrinkle recovery angle (in degrees) for the samefabric specimens discussed in the previous exercise:Untreated 79 80 78 80 78Permafresh 55 136 135 132 137 134Permafresh 48 125 131 125 145 145Hylite LF 143 141 146 141 145The untreated fabric once again stands out, this time as inferior to the treatedfabrics in wrinkle resistance. Examine the data for the three durable pressprocesses and summarize your findings. How does the ranking of the threeprocesses by wrinkle resistance compare with their ranking by breaking strengthin Exercise 25.36? Explain why we cant trust the ANOVA F test.
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