The article Fatigue Testing of Condoms cited in Exercise7.32 reported that for a sample
Chapter 9, Problem 76(choose chapter or problem)
The article Fatigue Testing of Condoms cited in Exercise7.32 reported that for a sample of 20 natural latex condomsof a certain type, the sample mean and sample standarddeviation of the number of cycles to break were 4358 and2218, respectively, whereas a sample of 20 polyisoprenecondoms gave a sample mean and sample standard deviation of 5805 and 3990, respectively. Is there strong evidencefor concluding that true average number of cycles tobreak for the polyisoprene condom exceeds that for the naturallatex condom by more than 1000 cycles? Carry out atest using a significance level of .01. [Note: The cited paperreported P-values of t tests for comparing means of the varioustypes considered.]
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