Using the parameter estimates and covariance matrix given in Table 11.10 for the weights of schoolchildren, (a) Give a 95% confidence interval for the expected weight of a boy with a height of 1.4 m....

Using the parameter estimates and covariance matrix given in Table 11.10 for the weights of schoolchildren,

(a) Give a 95% confidence interval for the expected weight of a boy with a height of 1.4 m.

(b) Give a 95% confidence interval for the actual weight of a boy with a height of 1.4 m.