For Exercise 6.1, see page 289; for 6.2 and 6.3, see page 293; for 6.4, see page 294; for 6.5, see page 295; for 6.6 and 6.7, see page 297; and for 6.8, see page 298.
6.2 Find the mean and the standard deviation of the sampling distribution.
Compute the mean and standard deviation of the sampling distribution of the sample mean when you plan to take an SRS of size 49 from a population with mean 420 and standard deviation 21.