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s of the questions remain unanswered (1 point) Scraple is a degenerative disease of the nervous system. A study of the substance IDX as a treatment for scraple used as subjects 16 infected hamsters. Elght, chosen at random, were injected with IDX. The other 8 were untreated. The researchers recorded how long each hamster lived. They reported: Thus although all infected control hamsters had died by 92 days after infection (mean SEM = 865 +1.871. IDX-treated barnsters ived up to 107 days (mart SEM -98.4 2.83). Readers are supposed to know that SEM stands for the standard error of the mean (a) For the group injected with IDX findi The mean, The standard deviation, = (b) For the untreated group, find The mean = The standard deviation, Note: You can earn partial credit on this problem Customt Answers