Question

Scrapie is a degenerative disease of the
nervous system. A study of the substance IDX
as a treatment for scrapie used as subjects 28
infected hamsters. Fourteen, chosen at
random, were injected with IDX. The other 14
were untreated. The researchers recorded
how long each hamster lived. They reported:
Thus, although all infected control hamsters
had died by 94 days after infection (mean +/-
SEM=87.1 +/-1.58),. IDX-treated hamsters
lived up to 108 days(mean +/- SEM=98
+/-2.57). Readers are supposed to know that
SEM stands for standard error of the mean.
(a) For the group injected with IDX, find:
The mean, x bar=
The standard deviation, s=
(b) For the untreated grop, find:
The mean, x bar=_.
The standard deviation, s=
​

Answer 1

Step-by-step explanation:

make a table in a paper and keep it it can be easy to solve