Question: Does polyester decay? How quickly do synthetic fabrics such as polyester decay in landfills? A researcher buried 10 strips of polyester fabric in well-drained soil

Does polyester decay? How quickly do synthetic fabrics such as polyester decay in landfills? A researcher buried 10 strips of polyester fabric in well-drained soil in the summer. Five of the strips, chosen at random, were dug up after 2 weeks; the other 5 were dug up after 16 weeks. Breaking strength is easy to measure and is a good indicator of decay. Lower strength means the fabric has decayed. Here are the breaking strengths in pounds:5 Stephen Wilkes/Getty Images Sample 1 (2 weeks) 118 126 126 120 129 Sample 2 (16 weeks) 124 98 110 140 110 Figure 18.5 shows output for the two-sample t test using Option 1. (This output is from CrunchIt!, software that does Option 1 without rounding or truncating the degrees of freedom.) Do polyester strips buried for 16 weeks have significantly lower mean breaking strength than those buried for 2 weeks? Using the output in Figure 18.5, write a summary in a sentence or two, including t, df, P, and a conclusion.

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