In an investigation of the physiological effects of alcohol (ethanol), 15 mice were randomly allocated to three treatment groups, each to receive a different oral dose of alcohol. The dosage levels were 1.5, 3.0, and 6.0 gm alcohol per kg body weight. The body temperature of each mouse was measured immediately before the alcohol was
(a) Interpret the value of se in the context of this setting.
(b) What proportion of the variation in cob weights is explained by the linear relationship between cob weight and density?